| APA | PGEL. (2012, February 16). In Acronym Geek. Retrieved 04:13, February 16, 2012, from http://www.acronymgeek.com/PGEL |
| MLA | "PGEL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PGEL>. |
| MHRA | 'PGEL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PGEL> [accessed 16 February 2012] |
| Chicago | "PGEL", http://www.acronymgeek.com/PGEL (accessed February 16, 2012). |
| CBE/CSE | PGEL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PGEL. |
| Bluebook | PGEL, http://www.acronymgeek.com/PGEL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGEL, http://www.acronymgeek.com/PGEL (optional description here) (as of Feb. 16, 2012, 04:13). |
| AMA | PGEL. Acronym Geek. February 16, 2012, 04:13. Available at: http://www.acronymgeek.com/PGEL. Accessed February 16, 2012, 04:13. |