| APA | M.D. (2012, February 14). In Acronym Geek. Retrieved 07:36, February 14, 2012, from http://www.acronymgeek.com/M.D |
| MLA | "M.D." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/M.D>. |
| MHRA | 'M.D', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/M.D> [accessed 14 February 2012] |
| Chicago | "M.D", http://www.acronymgeek.com/M.D (accessed February 14, 2012). |
| CBE/CSE | M.D [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/M.D. |
| Bluebook | M.D, http://www.acronymgeek.com/M.D (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, M.D, http://www.acronymgeek.com/M.D (optional description here) (as of Feb. 14, 2012, 07:36). |
| AMA | M.D. Acronym Geek. February 14, 2012, 07:36. Available at: http://www.acronymgeek.com/M.D. Accessed February 14, 2012, 07:36. |