| APA | P/E. (2012, February 10). In Acronym Geek. Retrieved 19:24, February 10, 2012, from http://www.acronymgeek.com/P/E |
| MLA | "P/E." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/P/E>. |
| MHRA | 'P/E', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/P/E> [accessed 10 February 2012] |
| Chicago | "P/E", http://www.acronymgeek.com/P/E (accessed February 10, 2012). |
| CBE/CSE | P/E [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/P/E. |
| Bluebook | P/E, http://www.acronymgeek.com/P/E (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, P/E, http://www.acronymgeek.com/P/E (optional description here) (as of Feb. 10, 2012, 19:24). |
| AMA | P/E. Acronym Geek. February 10, 2012, 19:24. Available at: http://www.acronymgeek.com/P/E. Accessed February 10, 2012, 19:24. |