| APA | PROP. (2012, February 10). In Acronym Geek. Retrieved 12:45, February 10, 2012, from http://www.acronymgeek.com/PROP |
| MLA | "PROP." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/PROP>. |
| MHRA | 'PROP', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/PROP> [accessed 10 February 2012] |
| Chicago | "PROP", http://www.acronymgeek.com/PROP (accessed February 10, 2012). |
| CBE/CSE | PROP [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/PROP. |
| Bluebook | PROP, http://www.acronymgeek.com/PROP (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PROP, http://www.acronymgeek.com/PROP (optional description here) (as of Feb. 10, 2012, 12:45). |
| AMA | PROP. Acronym Geek. February 10, 2012, 12:45. Available at: http://www.acronymgeek.com/PROP. Accessed February 10, 2012, 12:45. |