| APA | OTPP. (2012, February 16). In Acronym Geek. Retrieved 03:36, February 16, 2012, from http://www.acronymgeek.com/OTPP |
| MLA | "OTPP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OTPP>. |
| MHRA | 'OTPP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OTPP> [accessed 16 February 2012] |
| Chicago | "OTPP", http://www.acronymgeek.com/OTPP (accessed February 16, 2012). |
| CBE/CSE | OTPP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OTPP. |
| Bluebook | OTPP, http://www.acronymgeek.com/OTPP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OTPP, http://www.acronymgeek.com/OTPP (optional description here) (as of Feb. 16, 2012, 03:36). |
| AMA | OTPP. Acronym Geek. February 16, 2012, 03:36. Available at: http://www.acronymgeek.com/OTPP. Accessed February 16, 2012, 03:36. |