| APA | GMT. (2012, February 13). In Acronym Geek. Retrieved 20:51, February 13, 2012, from http://www.acronymgeek.com/GMT |
| MLA | "GMT." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/GMT>. |
| MHRA | 'GMT', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/GMT> [accessed 13 February 2012] |
| Chicago | "GMT", http://www.acronymgeek.com/GMT (accessed February 13, 2012). |
| CBE/CSE | GMT [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/GMT. |
| Bluebook | GMT, http://www.acronymgeek.com/GMT (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GMT, http://www.acronymgeek.com/GMT (optional description here) (as of Feb. 13, 2012, 20:51). |
| AMA | GMT. Acronym Geek. February 13, 2012, 20:51. Available at: http://www.acronymgeek.com/GMT. Accessed February 13, 2012, 20:51. |