| APA | TF. (2012, February 14). In Acronym Geek. Retrieved 06:21, February 14, 2012, from http://www.acronymgeek.com/TF |
| MLA | "TF." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/TF>. |
| MHRA | 'TF', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/TF> [accessed 14 February 2012] |
| Chicago | "TF", http://www.acronymgeek.com/TF (accessed February 14, 2012). |
| CBE/CSE | TF [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/TF. |
| Bluebook | TF, http://www.acronymgeek.com/TF (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TF, http://www.acronymgeek.com/TF (optional description here) (as of Feb. 14, 2012, 06:21). |
| AMA | TF. Acronym Geek. February 14, 2012, 06:21. Available at: http://www.acronymgeek.com/TF. Accessed February 14, 2012, 06:21. |