| APA | P2P. (2012, February 9). In Acronym Geek. Retrieved 19:27, February 9, 2012, from http://www.acronymgeek.com/P2P |
| MLA | "P2P." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/P2P>. |
| MHRA | 'P2P', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/P2P> [accessed 9 February 2012] |
| Chicago | "P2P", http://www.acronymgeek.com/P2P (accessed February 9, 2012). |
| CBE/CSE | P2P [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/P2P. |
| Bluebook | P2P, http://www.acronymgeek.com/P2P (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, P2P, http://www.acronymgeek.com/P2P (optional description here) (as of Feb. 9, 2012, 19:27). |
| AMA | P2P. Acronym Geek. February 9, 2012, 19:27. Available at: http://www.acronymgeek.com/P2P. Accessed February 9, 2012, 19:27. |