| APA | GUIN. (2012, February 16). In Acronym Geek. Retrieved 23:11, February 16, 2012, from http://www.acronymgeek.com/GUIN |
| MLA | "GUIN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/GUIN>. |
| MHRA | 'GUIN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/GUIN> [accessed 16 February 2012] |
| Chicago | "GUIN", http://www.acronymgeek.com/GUIN (accessed February 16, 2012). |
| CBE/CSE | GUIN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/GUIN. |
| Bluebook | GUIN, http://www.acronymgeek.com/GUIN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUIN, http://www.acronymgeek.com/GUIN (optional description here) (as of Feb. 16, 2012, 23:11). |
| AMA | GUIN. Acronym Geek. February 16, 2012, 23:11. Available at: http://www.acronymgeek.com/GUIN. Accessed February 16, 2012, 23:11. |