| APA | NFDL. (2012, February 15). In Acronym Geek. Retrieved 14:04, February 15, 2012, from http://www.acronymgeek.com/NFDL |
| MLA | "NFDL." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NFDL>. |
| MHRA | 'NFDL', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NFDL> [accessed 15 February 2012] |
| Chicago | "NFDL", http://www.acronymgeek.com/NFDL (accessed February 15, 2012). |
| CBE/CSE | NFDL [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NFDL. |
| Bluebook | NFDL, http://www.acronymgeek.com/NFDL (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NFDL, http://www.acronymgeek.com/NFDL (optional description here) (as of Feb. 15, 2012, 14:04). |
| AMA | NFDL. Acronym Geek. February 15, 2012, 14:04. Available at: http://www.acronymgeek.com/NFDL. Accessed February 15, 2012, 14:04. |