| APA | GDFF. (2012, February 17). In Acronym Geek. Retrieved 02:27, February 17, 2012, from http://www.acronymgeek.com/GDFF |
| MLA | "GDFF." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/GDFF>. |
| MHRA | 'GDFF', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/GDFF> [accessed 17 February 2012] |
| Chicago | "GDFF", http://www.acronymgeek.com/GDFF (accessed February 17, 2012). |
| CBE/CSE | GDFF [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/GDFF. |
| Bluebook | GDFF, http://www.acronymgeek.com/GDFF (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, GDFF, http://www.acronymgeek.com/GDFF (optional description here) (as of Feb. 17, 2012, 02:27). |
| AMA | GDFF. Acronym Geek. February 17, 2012, 02:27. Available at: http://www.acronymgeek.com/GDFF. Accessed February 17, 2012, 02:27. |