| APA | PEA. (2012, February 9). In Acronym Geek. Retrieved 19:14, February 9, 2012, from http://www.acronymgeek.com/PEA |
| MLA | "PEA." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/PEA>. |
| MHRA | 'PEA', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/PEA> [accessed 9 February 2012] |
| Chicago | "PEA", http://www.acronymgeek.com/PEA (accessed February 9, 2012). |
| CBE/CSE | PEA [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/PEA. |
| Bluebook | PEA, http://www.acronymgeek.com/PEA (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PEA, http://www.acronymgeek.com/PEA (optional description here) (as of Feb. 9, 2012, 19:14). |
| AMA | PEA. Acronym Geek. February 9, 2012, 19:14. Available at: http://www.acronymgeek.com/PEA. Accessed February 9, 2012, 19:14. |