| APA | PBBO. (2012, February 16). In Acronym Geek. Retrieved 08:58, February 16, 2012, from http://www.acronymgeek.com/PBBO |
| MLA | "PBBO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PBBO>. |
| MHRA | 'PBBO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PBBO> [accessed 16 February 2012] |
| Chicago | "PBBO", http://www.acronymgeek.com/PBBO (accessed February 16, 2012). |
| CBE/CSE | PBBO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PBBO. |
| Bluebook | PBBO, http://www.acronymgeek.com/PBBO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PBBO, http://www.acronymgeek.com/PBBO (optional description here) (as of Feb. 16, 2012, 08:58). |
| AMA | PBBO. Acronym Geek. February 16, 2012, 08:58. Available at: http://www.acronymgeek.com/PBBO. Accessed February 16, 2012, 08:58. |