| APA | PGOR. (2012, February 17). In Acronym Geek. Retrieved 08:07, February 17, 2012, from http://www.acronymgeek.com/PGOR |
| MLA | "PGOR." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PGOR>. |
| MHRA | 'PGOR', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PGOR> [accessed 17 February 2012] |
| Chicago | "PGOR", http://www.acronymgeek.com/PGOR (accessed February 17, 2012). |
| CBE/CSE | PGOR [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PGOR. |
| Bluebook | PGOR, http://www.acronymgeek.com/PGOR (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGOR, http://www.acronymgeek.com/PGOR (optional description here) (as of Feb. 17, 2012, 08:07). |
| AMA | PGOR. Acronym Geek. February 17, 2012, 08:07. Available at: http://www.acronymgeek.com/PGOR. Accessed February 17, 2012, 08:07. |