According to Chicago Style Manual (16th ed.):
1. Full name(s) of author or authors
2. Title and subtitle of article
3. Title of periodical
4. Issue information (volume, issue number, date, etc.)
5. Page reference (where appropriate)
6. For online periodicals, a URL or if available, a DOI
"For journals, the volume and year plus the month or issue number are usually cited."
Newspaper and magazine articles may be cited in running text (“As Sheryl Stolberg and Robert Pear noted in a New York Times article on February 27, 2010,
Abrams, Marshall. "How do Natural Selection and Random Drift Interact?" Philosophy of Science 74 (December 2007): 666-79.
Menjivar, Cecilia. "Liminal Legality: Salvadoran and Guatemalan Immigrants' Lives in the United States." American Journal of Sociology 111, no. 4 (2006):999-1037.
Journal with DOI:
Kennett, Jeanett. " True and Proper Selves: Vellman on Love." Ethics 118 (January 2008): 213-27. doi: 10.1086/523747.
Journal with Permanent URL:
Whitney, Frank P. "The Six-Year High School in Cleveland." School Review 36, no. 4 (1929): 267-71. http://www.jstor.org/stable/1078814.
Journal from a database without doi or permanent URL (use ID number or ISSN number, if present):
Howard, David H. "Hospital Quality and Selective Contracting: Evidence from Kidney Transplantation." Forum for Health Economics and Policy 11, no. 2 (2008). PubMed Central (PMC2600561).
Journal with no doi number:
Sergio Castellano, Marco Cucco, Cristina Giacoma, and S. F. Fox. "Reproductive Investment of Female Green Toads (Bufo viridis)." Copeia 2004, no. 3 (August 2004): 659-64. http://www.asihcopeiaonline.org/doi/abs/10.1643/CE-03-182R2.
Journal with a doi number:
Castello, S., C. Giacoma, and T. Dujsebayeva. "Morphometric and Advertisement Call Geographic Variation in Polyploid Green Toads." Biological Journal of the Linnean Society 70 (2000): 341–60. doi: 10.1111/j.1095-8312.2000.tb00214.x.