| APA | POSP. (2012, February 17). In Acronym Geek. Retrieved 06:46, February 17, 2012, from http://www.acronymgeek.com/POSP |
| MLA | "POSP." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/POSP>. |
| MHRA | 'POSP', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/POSP> [accessed 17 February 2012] |
| Chicago | "POSP", http://www.acronymgeek.com/POSP (accessed February 17, 2012). |
| CBE/CSE | POSP [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/POSP. |
| Bluebook | POSP, http://www.acronymgeek.com/POSP (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, POSP, http://www.acronymgeek.com/POSP (optional description here) (as of Feb. 17, 2012, 06:46). |
| AMA | POSP. Acronym Geek. February 17, 2012, 06:46. Available at: http://www.acronymgeek.com/POSP. Accessed February 17, 2012, 06:46. |