| APA | PGOE. (2012, February 17). In Acronym Geek. Retrieved 00:58, February 17, 2012, from http://www.acronymgeek.com/PGOE |
| MLA | "PGOE." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PGOE>. |
| MHRA | 'PGOE', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PGOE> [accessed 17 February 2012] |
| Chicago | "PGOE", http://www.acronymgeek.com/PGOE (accessed February 17, 2012). |
| CBE/CSE | PGOE [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PGOE. |
| Bluebook | PGOE, http://www.acronymgeek.com/PGOE (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGOE, http://www.acronymgeek.com/PGOE (optional description here) (as of Feb. 17, 2012, 00:58). |
| AMA | PGOE. Acronym Geek. February 17, 2012, 00:58. Available at: http://www.acronymgeek.com/PGOE. Accessed February 17, 2012, 00:58. |