| APA | PEOA. (2012, February 15). In Acronym Geek. Retrieved 23:43, February 15, 2012, from http://www.acronymgeek.com/PEOA |
| MLA | "PEOA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/PEOA>. |
| MHRA | 'PEOA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/PEOA> [accessed 15 February 2012] |
| Chicago | "PEOA", http://www.acronymgeek.com/PEOA (accessed February 15, 2012). |
| CBE/CSE | PEOA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/PEOA. |
| Bluebook | PEOA, http://www.acronymgeek.com/PEOA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PEOA, http://www.acronymgeek.com/PEOA (optional description here) (as of Feb. 15, 2012, 23:43). |
| AMA | PEOA. Acronym Geek. February 15, 2012, 23:43. Available at: http://www.acronymgeek.com/PEOA. Accessed February 15, 2012, 23:43. |