| APA | PBPX. (2012, February 16). In Acronym Geek. Retrieved 07:04, February 16, 2012, from http://www.acronymgeek.com/PBPX |
| MLA | "PBPX." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PBPX>. |
| MHRA | 'PBPX', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PBPX> [accessed 16 February 2012] |
| Chicago | "PBPX", http://www.acronymgeek.com/PBPX (accessed February 16, 2012). |
| CBE/CSE | PBPX [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PBPX. |
| Bluebook | PBPX, http://www.acronymgeek.com/PBPX (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PBPX, http://www.acronymgeek.com/PBPX (optional description here) (as of Feb. 16, 2012, 07:04). |
| AMA | PBPX. Acronym Geek. February 16, 2012, 07:04. Available at: http://www.acronymgeek.com/PBPX. Accessed February 16, 2012, 07:04. |