| APA | PGU. (2012, February 10). In Acronym Geek. Retrieved 17:54, February 10, 2012, from http://www.acronymgeek.com/PGU |
| MLA | "PGU." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/PGU>. |
| MHRA | 'PGU', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/PGU> [accessed 10 February 2012] |
| Chicago | "PGU", http://www.acronymgeek.com/PGU (accessed February 10, 2012). |
| CBE/CSE | PGU [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/PGU. |
| Bluebook | PGU, http://www.acronymgeek.com/PGU (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGU, http://www.acronymgeek.com/PGU (optional description here) (as of Feb. 10, 2012, 17:54). |
| AMA | PGU. Acronym Geek. February 10, 2012, 17:54. Available at: http://www.acronymgeek.com/PGU. Accessed February 10, 2012, 17:54. |