| APA | POEN. (2012, February 16). In Acronym Geek. Retrieved 08:25, February 16, 2012, from http://www.acronymgeek.com/POEN |
| MLA | "POEN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/POEN>. |
| MHRA | 'POEN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/POEN> [accessed 16 February 2012] |
| Chicago | "POEN", http://www.acronymgeek.com/POEN (accessed February 16, 2012). |
| CBE/CSE | POEN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/POEN. |
| Bluebook | POEN, http://www.acronymgeek.com/POEN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, POEN, http://www.acronymgeek.com/POEN (optional description here) (as of Feb. 16, 2012, 08:25). |
| AMA | POEN. Acronym Geek. February 16, 2012, 08:25. Available at: http://www.acronymgeek.com/POEN. Accessed February 16, 2012, 08:25. |