| APA | GMD. (2012, February 14). In Acronym Geek. Retrieved 11:37, February 14, 2012, from http://www.acronymgeek.com/GMD |
| MLA | "GMD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GMD>. |
| MHRA | 'GMD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GMD> [accessed 14 February 2012] |
| Chicago | "GMD", http://www.acronymgeek.com/GMD (accessed February 14, 2012). |
| CBE/CSE | GMD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GMD. |
| Bluebook | GMD, http://www.acronymgeek.com/GMD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GMD, http://www.acronymgeek.com/GMD (optional description here) (as of Feb. 14, 2012, 11:37). |
| AMA | GMD. Acronym Geek. February 14, 2012, 11:37. Available at: http://www.acronymgeek.com/GMD. Accessed February 14, 2012, 11:37. |