| APA | YUOP. (2012, February 16). In Acronym Geek. Retrieved 02:47, February 16, 2012, from http://www.acronymgeek.com/YUOP |
| MLA | "YUOP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/YUOP>. |
| MHRA | 'YUOP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/YUOP> [accessed 16 February 2012] |
| Chicago | "YUOP", http://www.acronymgeek.com/YUOP (accessed February 16, 2012). |
| CBE/CSE | YUOP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/YUOP. |
| Bluebook | YUOP, http://www.acronymgeek.com/YUOP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YUOP, http://www.acronymgeek.com/YUOP (optional description here) (as of Feb. 16, 2012, 02:47). |
| AMA | YUOP. Acronym Geek. February 16, 2012, 02:47. Available at: http://www.acronymgeek.com/YUOP. Accessed February 16, 2012, 02:47. |