| APA | OYYS. (2012, February 16). In Acronym Geek. Retrieved 19:39, February 16, 2012, from http://www.acronymgeek.com/OYYS |
| MLA | "OYYS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OYYS>. |
| MHRA | 'OYYS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OYYS> [accessed 16 February 2012] |
| Chicago | "OYYS", http://www.acronymgeek.com/OYYS (accessed February 16, 2012). |
| CBE/CSE | OYYS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OYYS. |
| Bluebook | OYYS, http://www.acronymgeek.com/OYYS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OYYS, http://www.acronymgeek.com/OYYS (optional description here) (as of Feb. 16, 2012, 19:39). |
| AMA | OYYS. Acronym Geek. February 16, 2012, 19:39. Available at: http://www.acronymgeek.com/OYYS. Accessed February 16, 2012, 19:39. |