How to format your references using the Periodontology 2000 citation style

This is a short guide how to format citations and the bibliography in a manuscript for Periodontology 2000. For a complete guide how to prepare your manuscript refer to the journal's instructions to authors.

Using reference management software

Typically you don't format your citations and bibliography by hand. The easiest way is to use a reference manager:

Paperpile	The citation style is built in and you can choose it in Settings > Citation Style or Paperpile > Citation Style in Google Docs.
EndNote	Find the style here: output styles overview
Mendeley, Zotero, Papers, and others	The style is either built in or you can download a CSL file that is supported by most reference managers.
BibTeX	BibTeX styles are usually part of a LaTeX template. Check the instructions to authors if the publisher offers a LaTeX template for this journal.

Journal articles

Those examples are references to articles in scholarly journals and how they are supposed to appear in your bibliography.

Not all journals organize their published articles in volumes and issues, so these fields are optional. Some electronic journals do not provide a page range, but instead list an article identifier. In a case like this it's safe to use the article identifier instead of the page range.

A journal article with 1 author

Smaglik P. An equal chance. Nature 2004: 432: 931.

A journal article with 2 authors

Keefer DK, Larsen MC. Geology. Assessing landslide hazards. Science 2007: 316: 1136–1138.

A journal article with 3 authors

Contreras M, Ceric F, Torrealba F. Inactivation of the interoceptive insula disrupts drug craving and malaise induced by lithium. Science 2007: 318: 655–658.

A journal article with 100 or more authors

Dahlin E, Neely AS, Larsson A, Bäckman L, Nyberg L. Transfer of learning after updating training mediated by the striatum. Science 2008: 320: 1510–1512.

Books and book chapters

Here are examples of references for authored and edited books as well as book chapters.

An authored book

Kimball R, Ross M. The Kimball Group Reader. Indianapolis, IN, USA: John Wiley & Sons, Inc 2015

An edited book

Condello A, Lehmann S, eds. Sustainable Lina: Lina Bo Bardi’s Adaptive Reuse Projects. Cham: Springer International Publishing 2016

A chapter in an edited book

Ho Q-D, Gao Y, Rajalingham G, Le-Ngoc T. Wireless Routing Protocols for NANs. In: Gao Y, Rajalingham G, Le-Ngoc T, editors. Wireless Communications Networks for the Smart Grid. Cham: Springer International Publishing 2014: 51–69.

Web sites

Sometimes references to web sites should appear directly in the text rather than in the bibliography. Refer to the Instructions to authors for Periodontology 2000.

Blog post

O`Callaghan J. SpaceX Just Nailed Its Fifth Landing After Another Successful Launch. IFLScience. 2016.https://www.iflscience.com/space/spacex-just-nailed-its-fifth-landing/ (accessed 30 Oct2018).

Reports

This example shows the general structure used for government reports, technical reports, and scientific reports. If you can't locate the report number then it might be better to cite the report as a book. For reports it is usually not individual people that are credited as authors, but a governmental department or agency like "U. S. Food and Drug Administration" or "National Cancer Institute".

Government report

Government Accountability Office. Troops-To-Teachers: Program Brings More Men and Minorities to the Teaching Workforce, but Education Could Improve Management to Enhance Results. Washington, DC: U.S. Government Printing Office 2006

Theses and dissertations

Theses including Ph.D. dissertations, Master's theses or Bachelor theses follow the basic format outlined below.

Doctoral dissertation

Maafi N. Assessment of Volatile Metabolites for In Situ Detection of Fungal Decay of Wood. 2017.

News paper articles

Unlike scholarly journals, news papers do not usually have a volume and issue number. Instead, the full date and page number is required for a correct reference.

New York Times article

Barron J. A Historic Home Burns, and Suspicions Spread. New York Times. 2017: : A25.

In-text citations

References should be cited in the text by sequential numbers in parentheses:

This sentence cites one reference (2).
This sentence cites two references (3,4).
This sentence cites four references (4,6–8).

About the journal

Full journal title	Periodontology 2000
Abbreviation	Periodontol. 2000
ISSN (print)	0906-6713
ISSN (online)	1600-0757
Scope	Periodontics