| APA | PEOD. (2012, February 14). In Acronym Geek. Retrieved 16:19, February 14, 2012, from http://www.acronymgeek.com/PEOD |
| MLA | "PEOD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PEOD>. |
| MHRA | 'PEOD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PEOD> [accessed 14 February 2012] |
| Chicago | "PEOD", http://www.acronymgeek.com/PEOD (accessed February 14, 2012). |
| CBE/CSE | PEOD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PEOD. |
| Bluebook | PEOD, http://www.acronymgeek.com/PEOD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PEOD, http://www.acronymgeek.com/PEOD (optional description here) (as of Feb. 14, 2012, 16:19). |
| AMA | PEOD. Acronym Geek. February 14, 2012, 16:19. Available at: http://www.acronymgeek.com/PEOD. Accessed February 14, 2012, 16:19. |