| APA | PGNF. (2012, February 16). In Acronym Geek. Retrieved 07:37, February 16, 2012, from http://www.acronymgeek.com/PGNF |
| MLA | "PGNF." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PGNF>. |
| MHRA | 'PGNF', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PGNF> [accessed 16 February 2012] |
| Chicago | "PGNF", http://www.acronymgeek.com/PGNF (accessed February 16, 2012). |
| CBE/CSE | PGNF [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PGNF. |
| Bluebook | PGNF, http://www.acronymgeek.com/PGNF (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGNF, http://www.acronymgeek.com/PGNF (optional description here) (as of Feb. 16, 2012, 07:37). |
| AMA | PGNF. Acronym Geek. February 16, 2012, 07:37. Available at: http://www.acronymgeek.com/PGNF. Accessed February 16, 2012, 07:37. |