| APA | PGG. (2012, February 14). In Acronym Geek. Retrieved 06:25, February 14, 2012, from http://www.acronymgeek.com/PGG |
| MLA | "PGG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PGG>. |
| MHRA | 'PGG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PGG> [accessed 14 February 2012] |
| Chicago | "PGG", http://www.acronymgeek.com/PGG (accessed February 14, 2012). |
| CBE/CSE | PGG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PGG. |
| Bluebook | PGG, http://www.acronymgeek.com/PGG (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGG, http://www.acronymgeek.com/PGG (optional description here) (as of Feb. 14, 2012, 06:25). |
| AMA | PGG. Acronym Geek. February 14, 2012, 06:25. Available at: http://www.acronymgeek.com/PGG. Accessed February 14, 2012, 06:25. |