| APA | PBPY. (2012, February 17). In Acronym Geek. Retrieved 01:13, February 17, 2012, from http://www.acronymgeek.com/PBPY |
| MLA | "PBPY." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/PBPY>. |
| MHRA | 'PBPY', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/PBPY> [accessed 17 February 2012] |
| Chicago | "PBPY", http://www.acronymgeek.com/PBPY (accessed February 17, 2012). |
| CBE/CSE | PBPY [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/PBPY. |
| Bluebook | PBPY, http://www.acronymgeek.com/PBPY (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PBPY, http://www.acronymgeek.com/PBPY (optional description here) (as of Feb. 17, 2012, 01:13). |
| AMA | PBPY. Acronym Geek. February 17, 2012, 01:13. Available at: http://www.acronymgeek.com/PBPY. Accessed February 17, 2012, 01:13. |