| APA | UGPO. (2012, February 17). In Acronym Geek. Retrieved 05:08, February 17, 2012, from http://www.acronymgeek.com/UGPO |
| MLA | "UGPO." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/UGPO>. |
| MHRA | 'UGPO', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/UGPO> [accessed 17 February 2012] |
| Chicago | "UGPO", http://www.acronymgeek.com/UGPO (accessed February 17, 2012). |
| CBE/CSE | UGPO [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/UGPO. |
| Bluebook | UGPO, http://www.acronymgeek.com/UGPO (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UGPO, http://www.acronymgeek.com/UGPO (optional description here) (as of Feb. 17, 2012, 05:08). |
| AMA | UGPO. Acronym Geek. February 17, 2012, 05:08. Available at: http://www.acronymgeek.com/UGPO. Accessed February 17, 2012, 05:08. |