| APA | TFO. (2012, February 14). In Acronym Geek. Retrieved 04:21, February 14, 2012, from http://www.acronymgeek.com/TFO |
| MLA | "TFO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/TFO>. |
| MHRA | 'TFO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/TFO> [accessed 14 February 2012] |
| Chicago | "TFO", http://www.acronymgeek.com/TFO (accessed February 14, 2012). |
| CBE/CSE | TFO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/TFO. |
| Bluebook | TFO, http://www.acronymgeek.com/TFO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TFO, http://www.acronymgeek.com/TFO (optional description here) (as of Feb. 14, 2012, 04:21). |
| AMA | TFO. Acronym Geek. February 14, 2012, 04:21. Available at: http://www.acronymgeek.com/TFO. Accessed February 14, 2012, 04:21. |