| APA | PGBL. (2012, February 16). In Acronym Geek. Retrieved 10:40, February 16, 2012, from http://www.acronymgeek.com/PGBL |
| MLA | "PGBL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PGBL>. |
| MHRA | 'PGBL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PGBL> [accessed 16 February 2012] |
| Chicago | "PGBL", http://www.acronymgeek.com/PGBL (accessed February 16, 2012). |
| CBE/CSE | PGBL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PGBL. |
| Bluebook | PGBL, http://www.acronymgeek.com/PGBL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGBL, http://www.acronymgeek.com/PGBL (optional description here) (as of Feb. 16, 2012, 10:40). |
| AMA | PGBL. Acronym Geek. February 16, 2012, 10:40. Available at: http://www.acronymgeek.com/PGBL. Accessed February 16, 2012, 10:40. |