| APA | GUGI. (2012, February 17). In Acronym Geek. Retrieved 01:43, February 17, 2012, from http://www.acronymgeek.com/GUGI |
| MLA | "GUGI." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/GUGI>. |
| MHRA | 'GUGI', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/GUGI> [accessed 17 February 2012] |
| Chicago | "GUGI", http://www.acronymgeek.com/GUGI (accessed February 17, 2012). |
| CBE/CSE | GUGI [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/GUGI. |
| Bluebook | GUGI, http://www.acronymgeek.com/GUGI (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUGI, http://www.acronymgeek.com/GUGI (optional description here) (as of Feb. 17, 2012, 01:43). |
| AMA | GUGI. Acronym Geek. February 17, 2012, 01:43. Available at: http://www.acronymgeek.com/GUGI. Accessed February 17, 2012, 01:43. |