ASA style is usually used in Sociology. ASA stands for the American Sociological Association.
Use for quotes, paraphrases and summaries
If the works by the same author were published in the same year, add lowercase letters to the dates of publication and repeat them in the reference list - Example (Dodson 2006a; 2006b)
Journal Article from a Commercial Database
Sweeten, Gary, Shawn D. Bushway, and Raymond Paternoster. 2009. “Does Dropping Out of School Mean Dropping Into Delinquency?” Criminology 47(1):47-91. doi: 10.1111/j.1745-9125.2009.00139.x.
Information Posted on a Web Site
Spalter-Roth, Roberta and William Erskine. 2007. “Race and Ethnicity in the Sociology Pipeline.” Washington, DC: American Sociological Association. Retrieved January 9, 2008 (www.asanet.org/sites/default/files/files/pdf/raceethsociologypipe.pdf).
Web-Based Journal Article
Smith, Herman W. and Takako Nomi. 2000. "Is Amae the Key to Understanding Japanese Culture?" Electronic Journal of Sociology 5:1. Retrieved May 5, 2000 (http://www.sociology.org/ejs-archives/vol005.001/smith-nomi.html).
Web Version of Newspaper
Blank, Rebecca M. 2008. “How We Measure Poverty.” Los Angeles Times, September 15. Retrieved January 7, 2009 (http://www.latimes.com/news/opinion/sunday/commentary/la-oe-blank15-2008sep15,0,7811609.story).
Note: Citations should be double-spaced and have a hanging indent.