| APA | GFDY. (2012, February 15). In Acronym Geek. Retrieved 23:38, February 15, 2012, from http://www.acronymgeek.com/GFDY |
| MLA | "GFDY." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/GFDY>. |
| MHRA | 'GFDY', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/GFDY> [accessed 15 February 2012] |
| Chicago | "GFDY", http://www.acronymgeek.com/GFDY (accessed February 15, 2012). |
| CBE/CSE | GFDY [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/GFDY. |
| Bluebook | GFDY, http://www.acronymgeek.com/GFDY (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GFDY, http://www.acronymgeek.com/GFDY (optional description here) (as of Feb. 15, 2012, 23:38). |
| AMA | GFDY. Acronym Geek. February 15, 2012, 23:38. Available at: http://www.acronymgeek.com/GFDY. Accessed February 15, 2012, 23:38. |