| APA | GUS. (2012, February 10). In Acronym Geek. Retrieved 17:52, February 10, 2012, from http://www.acronymgeek.com/GUS |
| MLA | "GUS." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/GUS>. |
| MHRA | 'GUS', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/GUS> [accessed 10 February 2012] |
| Chicago | "GUS", http://www.acronymgeek.com/GUS (accessed February 10, 2012). |
| CBE/CSE | GUS [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/GUS. |
| Bluebook | GUS, http://www.acronymgeek.com/GUS (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUS, http://www.acronymgeek.com/GUS (optional description here) (as of Feb. 10, 2012, 17:52). |
| AMA | GUS. Acronym Geek. February 10, 2012, 17:52. Available at: http://www.acronymgeek.com/GUS. Accessed February 10, 2012, 17:52. |