| APA | TFDN. (2012, February 14). In Acronym Geek. Retrieved 13:28, February 14, 2012, from http://www.acronymgeek.com/TFDN |
| MLA | "TFDN." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/TFDN>. |
| MHRA | 'TFDN', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/TFDN> [accessed 14 February 2012] |
| Chicago | "TFDN", http://www.acronymgeek.com/TFDN (accessed February 14, 2012). |
| CBE/CSE | TFDN [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/TFDN. |
| Bluebook | TFDN, http://www.acronymgeek.com/TFDN (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TFDN, http://www.acronymgeek.com/TFDN (optional description here) (as of Feb. 14, 2012, 13:28). |
| AMA | TFDN. Acronym Geek. February 14, 2012, 13:28. Available at: http://www.acronymgeek.com/TFDN. Accessed February 14, 2012, 13:28. |