| APA | USGD. (2012, February 17). In Acronym Geek. Retrieved 04:14, February 17, 2012, from http://www.acronymgeek.com/USGD |
| MLA | "USGD." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/USGD>. |
| MHRA | 'USGD', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/USGD> [accessed 17 February 2012] |
| Chicago | "USGD", http://www.acronymgeek.com/USGD (accessed February 17, 2012). |
| CBE/CSE | USGD [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/USGD. |
| Bluebook | USGD, http://www.acronymgeek.com/USGD (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, USGD, http://www.acronymgeek.com/USGD (optional description here) (as of Feb. 17, 2012, 04:14). |
| AMA | USGD. Acronym Geek. February 17, 2012, 04:14. Available at: http://www.acronymgeek.com/USGD. Accessed February 17, 2012, 04:14. |