Iverson, Cheryl. "Comma, Semicolon, Colon." AMA Manual of Style: A Guide for Authors and Editors. New York, NY: Oxford University Press, 20070301. AMA Manual of Style. 20090401. Date Accessed 25 May. 2013 <http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div1-90>.
Iverson, C.(20070301). Comma, Semicolon, Colon. In AMA Manual of Style: A Guide for Authors and Editors. New York, NY: Oxford University Press. Retrieved 25 May. 2013, from http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div1-90.
Iverson, Cheryl. "Comma, Semicolon, Colon." In AMA Manual of Style: A Guide for Authors and Editors. New York, NY: Oxford University Press, 20070301. http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div1-90.
Iverson C. Comma, semicolon, colon. In: AMA Manual of Style Committee. AMA Manual of Style: A Guide for Authors and Editors. 10th ed. New York, NY: Oxford University Press; 2007:336-343. http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div1-90. Accessed May 25, 2013.