| APA | PGBK. (2012, February 14). In Acronym Geek. Retrieved 08:16, February 14, 2012, from http://www.acronymgeek.com/PGBK |
| MLA | "PGBK." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PGBK>. |
| MHRA | 'PGBK', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PGBK> [accessed 14 February 2012] |
| Chicago | "PGBK", http://www.acronymgeek.com/PGBK (accessed February 14, 2012). |
| CBE/CSE | PGBK [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PGBK. |
| Bluebook | PGBK, http://www.acronymgeek.com/PGBK (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PGBK, http://www.acronymgeek.com/PGBK (optional description here) (as of Feb. 14, 2012, 08:16). |
| AMA | PGBK. Acronym Geek. February 14, 2012, 08:16. Available at: http://www.acronymgeek.com/PGBK. Accessed February 14, 2012, 08:16. |