Iverson, Cheryl. "Secondary Citations and Quotations (Including Press Releases)." AMA Manual of Style. 20090401. Oxford University Press. Date of access 21 May. 2013, <http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-77>.
Iverson, C. (20090401). Secondary Citations and Quotations (Including Press Releases). AMA Manual of Style. Retrieved 21 May. 2013, from http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-77.
Iverson, Cheryl. "Secondary Citations and Quotations (Including Press Releases)." AMA Manual of Style. 21 May. 2013. http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-77.
Iverson C. Secondary citations and quotations (including press releases). 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. http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-77. Accessed May 21, 2013.