| APA | OPWP. (2012, February 15). In Acronym Geek. Retrieved 04:07, February 15, 2012, from http://www.acronymgeek.com/OPWP |
| MLA | "OPWP." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OPWP>. |
| MHRA | 'OPWP', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OPWP> [accessed 15 February 2012] |
| Chicago | "OPWP", http://www.acronymgeek.com/OPWP (accessed February 15, 2012). |
| CBE/CSE | OPWP [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OPWP. |
| Bluebook | OPWP, http://www.acronymgeek.com/OPWP (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OPWP, http://www.acronymgeek.com/OPWP (optional description here) (as of Feb. 15, 2012, 04:07). |
| AMA | OPWP. Acronym Geek. February 15, 2012, 04:07. Available at: http://www.acronymgeek.com/OPWP. Accessed February 15, 2012, 04:07. |