| APA | GUGD. (2012, February 14). In Acronym Geek. Retrieved 20:22, February 14, 2012, from http://www.acronymgeek.com/GUGD |
| MLA | "GUGD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GUGD>. |
| MHRA | 'GUGD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GUGD> [accessed 14 February 2012] |
| Chicago | "GUGD", http://www.acronymgeek.com/GUGD (accessed February 14, 2012). |
| CBE/CSE | GUGD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GUGD. |
| Bluebook | GUGD, http://www.acronymgeek.com/GUGD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUGD, http://www.acronymgeek.com/GUGD (optional description here) (as of Feb. 14, 2012, 20:22). |
| AMA | GUGD. Acronym Geek. February 14, 2012, 20:22. Available at: http://www.acronymgeek.com/GUGD. Accessed February 14, 2012, 20:22. |