| APA | OYPS. (2012, February 16). In Acronym Geek. Retrieved 22:12, February 16, 2012, from http://www.acronymgeek.com/OYPS |
| MLA | "OYPS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OYPS>. |
| MHRA | 'OYPS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OYPS> [accessed 16 February 2012] |
| Chicago | "OYPS", http://www.acronymgeek.com/OYPS (accessed February 16, 2012). |
| CBE/CSE | OYPS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OYPS. |
| Bluebook | OYPS, http://www.acronymgeek.com/OYPS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OYPS, http://www.acronymgeek.com/OYPS (optional description here) (as of Feb. 16, 2012, 22:12). |
| AMA | OYPS. Acronym Geek. February 16, 2012, 22:12. Available at: http://www.acronymgeek.com/OYPS. Accessed February 16, 2012, 22:12. |