| APA | OPOT. (2012, February 15). In Acronym Geek. Retrieved 03:05, February 15, 2012, from http://www.acronymgeek.com/OPOT |
| MLA | "OPOT." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OPOT>. |
| MHRA | 'OPOT', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OPOT> [accessed 15 February 2012] |
| Chicago | "OPOT", http://www.acronymgeek.com/OPOT (accessed February 15, 2012). |
| CBE/CSE | OPOT [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OPOT. |
| Bluebook | OPOT, http://www.acronymgeek.com/OPOT (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OPOT, http://www.acronymgeek.com/OPOT (optional description here) (as of Feb. 15, 2012, 03:05). |
| AMA | OPOT. Acronym Geek. February 15, 2012, 03:05. Available at: http://www.acronymgeek.com/OPOT. Accessed February 15, 2012, 03:05. |