| APA | GUDC. (2012, February 16). In Acronym Geek. Retrieved 19:51, February 16, 2012, from http://www.acronymgeek.com/GUDC |
| MLA | "GUDC." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GUDC>. |
| MHRA | 'GUDC', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GUDC> [accessed 16 February 2012] |
| Chicago | "GUDC", http://www.acronymgeek.com/GUDC (accessed February 16, 2012). |
| CBE/CSE | GUDC [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GUDC. |
| Bluebook | GUDC, http://www.acronymgeek.com/GUDC (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUDC, http://www.acronymgeek.com/GUDC (optional description here) (as of Feb. 16, 2012, 19:51). |
| AMA | GUDC. Acronym Geek. February 16, 2012, 19:51. Available at: http://www.acronymgeek.com/GUDC. Accessed February 16, 2012, 19:51. |