| APA | GUP. (2012, February 14). In Acronym Geek. Retrieved 11:56, February 14, 2012, from http://www.acronymgeek.com/GUP |
| MLA | "GUP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/GUP>. |
| MHRA | 'GUP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/GUP> [accessed 14 February 2012] |
| Chicago | "GUP", http://www.acronymgeek.com/GUP (accessed February 14, 2012). |
| CBE/CSE | GUP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/GUP. |
| Bluebook | GUP, http://www.acronymgeek.com/GUP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUP, http://www.acronymgeek.com/GUP (optional description here) (as of Feb. 14, 2012, 11:56). |
| AMA | GUP. Acronym Geek. February 14, 2012, 11:56. Available at: http://www.acronymgeek.com/GUP. Accessed February 14, 2012, 11:56. |