| APA | TYDF. (2012, February 16). In Acronym Geek. Retrieved 22:18, February 16, 2012, from http://www.acronymgeek.com/TYDF |
| MLA | "TYDF." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/TYDF>. |
| MHRA | 'TYDF', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/TYDF> [accessed 16 February 2012] |
| Chicago | "TYDF", http://www.acronymgeek.com/TYDF (accessed February 16, 2012). |
| CBE/CSE | TYDF [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/TYDF. |
| Bluebook | TYDF, http://www.acronymgeek.com/TYDF (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TYDF, http://www.acronymgeek.com/TYDF (optional description here) (as of Feb. 16, 2012, 22:18). |
| AMA | TYDF. Acronym Geek. February 16, 2012, 22:18. Available at: http://www.acronymgeek.com/TYDF. Accessed February 16, 2012, 22:18. |