| APA | GUHD. (2012, February 16). In Acronym Geek. Retrieved 04:57, February 16, 2012, from http://www.acronymgeek.com/GUHD |
| MLA | "GUHD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GUHD>. |
| MHRA | 'GUHD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GUHD> [accessed 16 February 2012] |
| Chicago | "GUHD", http://www.acronymgeek.com/GUHD (accessed February 16, 2012). |
| CBE/CSE | GUHD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GUHD. |
| Bluebook | GUHD, http://www.acronymgeek.com/GUHD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUHD, http://www.acronymgeek.com/GUHD (optional description here) (as of Feb. 16, 2012, 04:57). |
| AMA | GUHD. Acronym Geek. February 16, 2012, 04:57. Available at: http://www.acronymgeek.com/GUHD. Accessed February 16, 2012, 04:57. |