| APA | GDDM. (2012, February 12). In Acronym Geek. Retrieved 10:37, February 12, 2012, from http://www.acronymgeek.com/GDDM |
| MLA | "GDDM." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/GDDM>. |
| MHRA | 'GDDM', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/GDDM> [accessed 12 February 2012] |
| Chicago | "GDDM", http://www.acronymgeek.com/GDDM (accessed February 12, 2012). |
| CBE/CSE | GDDM [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/GDDM. |
| Bluebook | GDDM, http://www.acronymgeek.com/GDDM (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GDDM, http://www.acronymgeek.com/GDDM (optional description here) (as of Feb. 12, 2012, 10:37). |
| AMA | GDDM. Acronym Geek. February 12, 2012, 10:37. Available at: http://www.acronymgeek.com/GDDM. Accessed February 12, 2012, 10:37. |