| APA | PBKW. (2012, February 17). In Acronym Geek. Retrieved 07:21, February 17, 2012, from http://www.acronymgeek.com/PBKW |
| MLA | "PBKW." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PBKW>. |
| MHRA | 'PBKW', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PBKW> [accessed 17 February 2012] |
| Chicago | "PBKW", http://www.acronymgeek.com/PBKW (accessed February 17, 2012). |
| CBE/CSE | PBKW [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PBKW. |
| Bluebook | PBKW, http://www.acronymgeek.com/PBKW (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PBKW, http://www.acronymgeek.com/PBKW (optional description here) (as of Feb. 17, 2012, 07:21). |
| AMA | PBKW. Acronym Geek. February 17, 2012, 07:21. Available at: http://www.acronymgeek.com/PBKW. Accessed February 17, 2012, 07:21. |