| APA | PUTF. (2012, February 15). In Acronym Geek. Retrieved 19:55, February 15, 2012, from http://www.acronymgeek.com/PUTF |
| MLA | "PUTF." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PUTF>. |
| MHRA | 'PUTF', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PUTF> [accessed 15 February 2012] |
| Chicago | "PUTF", http://www.acronymgeek.com/PUTF (accessed February 15, 2012). |
| CBE/CSE | PUTF [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PUTF. |
| Bluebook | PUTF, http://www.acronymgeek.com/PUTF (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PUTF, http://www.acronymgeek.com/PUTF (optional description here) (as of Feb. 15, 2012, 19:55). |
| AMA | PUTF. Acronym Geek. February 15, 2012, 19:55. Available at: http://www.acronymgeek.com/PUTF. Accessed February 15, 2012, 19:55. |