| APA | GFM. (2012, February 10). In Acronym Geek. Retrieved 11:22, February 10, 2012, from http://www.acronymgeek.com/GFM |
| MLA | "GFM." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/GFM>. |
| MHRA | 'GFM', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/GFM> [accessed 10 February 2012] |
| Chicago | "GFM", http://www.acronymgeek.com/GFM (accessed February 10, 2012). |
| CBE/CSE | GFM [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/GFM. |
| Bluebook | GFM, http://www.acronymgeek.com/GFM (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GFM, http://www.acronymgeek.com/GFM (optional description here) (as of Feb. 10, 2012, 11:22). |
| AMA | GFM. Acronym Geek. February 10, 2012, 11:22. Available at: http://www.acronymgeek.com/GFM. Accessed February 10, 2012, 11:22. |