| APA | TSFO. (2012, February 14). In Acronym Geek. Retrieved 15:10, February 14, 2012, from http://www.acronymgeek.com/TSFO |
| MLA | "TSFO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/TSFO>. |
| MHRA | 'TSFO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/TSFO> [accessed 14 February 2012] |
| Chicago | "TSFO", http://www.acronymgeek.com/TSFO (accessed February 14, 2012). |
| CBE/CSE | TSFO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/TSFO. |
| Bluebook | TSFO, http://www.acronymgeek.com/TSFO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TSFO, http://www.acronymgeek.com/TSFO (optional description here) (as of Feb. 14, 2012, 15:10). |
| AMA | TSFO. Acronym Geek. February 14, 2012, 15:10. Available at: http://www.acronymgeek.com/TSFO. Accessed February 14, 2012, 15:10. |