| APA | MD. (2012, February 14). In Acronym Geek. Retrieved 06:49, February 14, 2012, from http://www.acronymgeek.com/MD |
| MLA | "MD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/MD>. |
| MHRA | 'MD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/MD> [accessed 14 February 2012] |
| Chicago | "MD", http://www.acronymgeek.com/MD (accessed February 14, 2012). |
| CBE/CSE | MD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/MD. |
| Bluebook | MD, http://www.acronymgeek.com/MD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, MD, http://www.acronymgeek.com/MD (optional description here) (as of Feb. 14, 2012, 06:49). |
| AMA | MD. Acronym Geek. February 14, 2012, 06:49. Available at: http://www.acronymgeek.com/MD. Accessed February 14, 2012, 06:49. |