| APA | PBWO. (2012, February 16). In Acronym Geek. Retrieved 08:45, February 16, 2012, from http://www.acronymgeek.com/PBWO |
| MLA | "PBWO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PBWO>. |
| MHRA | 'PBWO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PBWO> [accessed 16 February 2012] |
| Chicago | "PBWO", http://www.acronymgeek.com/PBWO (accessed February 16, 2012). |
| CBE/CSE | PBWO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PBWO. |
| Bluebook | PBWO, http://www.acronymgeek.com/PBWO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PBWO, http://www.acronymgeek.com/PBWO (optional description here) (as of Feb. 16, 2012, 08:45). |
| AMA | PBWO. Acronym Geek. February 16, 2012, 08:45. Available at: http://www.acronymgeek.com/PBWO. Accessed February 16, 2012, 08:45. |