How to format your references using the Circulation citation style

This is a short guide how to format citations and the bibliography in a manuscript for Circulation. 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	Download the output style file
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

Koen D. Nuts and bolts. Passing the interview. Nature. 2004;429:112.

A journal article with 2 authors

Hetherington AM, Woodward FI. The role of stomata in sensing and driving environmental change. Nature. 2003;424:901–908.

A journal article with 3 authors

Bar-Yam Y, Harmon D, de Bivort B. Systems biology. Attractors and democratic dynamics. Science. 2009;323:1016–1017.

A journal article with 99 or more authors

MacDonald D, Demarre G, Bouvier M, Mazel D, Gopaul DN. Structural basis for broad DNA-specificity in integron recombination. Nature. 2006;440:1157–1162.

Books and book chapters

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

An authored book

Perl J, DeMark TR. DeMark Indicators. Hoboken, NJ: John Wiley & Sons, Inc.; 2010.

An edited book

Zaslavsky O, Sullivan P, editors. Constructing Knowledge for Teaching Secondary Mathematics: Tasks to enhance prospective and practicing teacher learning. Boston, MA: Springer US; 2011.

A chapter in an edited book

Puig L, Guerrero JJ. Two-View Relations Between Omnidirectional and Conventional Cameras. In: Guerrero JJ, editor. Omnidirectional Vision Systems: Calibration, Feature Extraction and 3D Information. London: Springer; 2013. p. 65–86.

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 Circulation.

Blog post

Davis J. Creating Babies Without Eggs May One Day Be Possible Thanks To Groundbreaking New Research [Internet]. IFLScience. 2016 [cited 2018 Oct 30];Available from: https://www.iflscience.com/health-and-medicine/creating-babies-without-eggs-may-one-day-be-possible-thanks-to-groundbreaking-new-research/

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. GSEs: Implications of Removing State and Local Tax Exemption. Washington, DC: U.S. Government Printing Office; 1994.

Theses and dissertations

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

Doctoral dissertation

Nguyen MS. Solid families: Community-based program for pregnant and parenting adolescents. 2009;

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

Cooper M, Walsh MW. Distressed Cities Weigh Bold Tactics In a New Fiscal Era. New York Times. 2012;A19.

In-text citations

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

This sentence cites one reference ¹.
This sentence cites two references ^1,2.
This sentence cites four references ^1–4.

About the journal

Full journal title	Circulation
Abbreviation	Circulation
ISSN (print)	0009-7322
ISSN (online)	1524-4539
Scope	Cardiology and Cardiovascular Medicine Physiology (medical)