Winker, Margaret A. "Uniform Labeling." AMA Manual of Style. 20090401. Oxford University Press. Date of access 22 May. 2013, <http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-439>.
Winker, M. (20090401). Uniform Labeling. AMA Manual of Style. Retrieved 22 May. 2013, from http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-439.
Winker, Margaret A. "Uniform Labeling." AMA Manual of Style. 22 May. 2013. http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div2-439.
Winker MA. Uniform labeling. 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-div2-439. Accessed May 22, 2013.