| APA | UTPO. (2012, February 15). In Acronym Geek. Retrieved 06:23, February 15, 2012, from http://www.acronymgeek.com/UTPO |
| MLA | "UTPO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/UTPO>. |
| MHRA | 'UTPO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/UTPO> [accessed 15 February 2012] |
| Chicago | "UTPO", http://www.acronymgeek.com/UTPO (accessed February 15, 2012). |
| CBE/CSE | UTPO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/UTPO. |
| Bluebook | UTPO, http://www.acronymgeek.com/UTPO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UTPO, http://www.acronymgeek.com/UTPO (optional description here) (as of Feb. 15, 2012, 06:23). |
| AMA | UTPO. Acronym Geek. February 15, 2012, 06:23. Available at: http://www.acronymgeek.com/UTPO. Accessed February 15, 2012, 06:23. |