| APA | OPWT. (2012, February 16). In Acronym Geek. Retrieved 20:28, February 16, 2012, from http://www.acronymgeek.com/OPWT |
| MLA | "OPWT." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OPWT>. |
| MHRA | 'OPWT', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OPWT> [accessed 16 February 2012] |
| Chicago | "OPWT", http://www.acronymgeek.com/OPWT (accessed February 16, 2012). |
| CBE/CSE | OPWT [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OPWT. |
| Bluebook | OPWT, http://www.acronymgeek.com/OPWT (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OPWT, http://www.acronymgeek.com/OPWT (optional description here) (as of Feb. 16, 2012, 20:28). |
| AMA | OPWT. Acronym Geek. February 16, 2012, 20:28. Available at: http://www.acronymgeek.com/OPWT. Accessed February 16, 2012, 20:28. |