| APA | GDM. (2012, February 14). In Acronym Geek. Retrieved 03:49, February 14, 2012, from http://www.acronymgeek.com/GDM |
| MLA | "GDM." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GDM>. |
| MHRA | 'GDM', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GDM> [accessed 14 February 2012] |
| Chicago | "GDM", http://www.acronymgeek.com/GDM (accessed February 14, 2012). |
| CBE/CSE | GDM [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GDM. |
| Bluebook | GDM, http://www.acronymgeek.com/GDM (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GDM, http://www.acronymgeek.com/GDM (optional description here) (as of Feb. 14, 2012, 03:49). |
| AMA | GDM. Acronym Geek. February 14, 2012, 03:49. Available at: http://www.acronymgeek.com/GDM. Accessed February 14, 2012, 03:49. |