Meyer, Harriet S. "Pedigrees." AMA Manual of Style. 20090401. Oxford University Press. Date of access 18 Jun. 2013, <http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-421>.
Meyer, H. (20090401). Pedigrees. AMA Manual of Style. Retrieved 18 Jun. 2013, from http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-421.
Meyer, Harriet S. "Pedigrees." AMA Manual of Style. 18 Jun. 2013. http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-421.
Meyer HS. Pedigrees. In: AMA Manual of Style: A Guide for Authors and Editors. New York, NY: Oxford University Press; 2007. http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-421. Accessed June 18, 2013.