Iverson, Cheryl. "Parts of a Manuscript, Headings, Subheadings, and Side Headings." AMA Manual of Style. 20090401. Oxford University Press. Date of access 19 Jun. 2013, <http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div1-24>.
Iverson, C. (20090401). Parts of a Manuscript, Headings, Subheadings, and Side Headings. AMA Manual of Style. Retrieved 19 Jun. 2013, from http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div1-24.
Iverson, Cheryl. "Parts of a Manuscript, Headings, Subheadings, and Side Headings." AMA Manual of Style. 19 Jun. 2013. http://www.amamanualofstyle.com/view/10.1093/jama/9780195176339.001.0001/med-9780195176339-div1-24.
Iverson C. Parts of a manuscript, headings, subheadings, and side headings. 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-div1-24. Accessed June 19, 2013.