| APA | FFDN. (2012, February 16). In Acronym Geek. Retrieved 03:42, February 16, 2012, from http://www.acronymgeek.com/FFDN |
| MLA | "FFDN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/FFDN>. |
| MHRA | 'FFDN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/FFDN> [accessed 16 February 2012] |
| Chicago | "FFDN", http://www.acronymgeek.com/FFDN (accessed February 16, 2012). |
| CBE/CSE | FFDN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/FFDN. |
| Bluebook | FFDN, http://www.acronymgeek.com/FFDN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, FFDN, http://www.acronymgeek.com/FFDN (optional description here) (as of Feb. 16, 2012, 03:42). |
| AMA | FFDN. Acronym Geek. February 16, 2012, 03:42. Available at: http://www.acronymgeek.com/FFDN. Accessed February 16, 2012, 03:42. |