| APA | P4M. (2012, February 14). In Acronym Geek. Retrieved 11:55, February 14, 2012, from http://www.acronymgeek.com/P4M |
| MLA | "P4M." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/P4M>. |
| MHRA | 'P4M', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/P4M> [accessed 14 February 2012] |
| Chicago | "P4M", http://www.acronymgeek.com/P4M (accessed February 14, 2012). |
| CBE/CSE | P4M [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/P4M. |
| Bluebook | P4M, http://www.acronymgeek.com/P4M (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, P4M, http://www.acronymgeek.com/P4M (optional description here) (as of Feb. 14, 2012, 11:55). |
| AMA | P4M. Acronym Geek. February 14, 2012, 11:55. Available at: http://www.acronymgeek.com/P4M. Accessed February 14, 2012, 11:55. |