| APA | GUSM. (2012, February 15). In Acronym Geek. Retrieved 04:51, February 15, 2012, from http://www.acronymgeek.com/GUSM |
| MLA | "GUSM." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GUSM>. |
| MHRA | 'GUSM', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GUSM> [accessed 15 February 2012] |
| Chicago | "GUSM", http://www.acronymgeek.com/GUSM (accessed February 15, 2012). |
| CBE/CSE | GUSM [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GUSM. |
| Bluebook | GUSM, http://www.acronymgeek.com/GUSM (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GUSM, http://www.acronymgeek.com/GUSM (optional description here) (as of Feb. 15, 2012, 04:51). |
| AMA | GUSM. Acronym Geek. February 15, 2012, 04:51. Available at: http://www.acronymgeek.com/GUSM. Accessed February 15, 2012, 04:51. |