| APA | PTBP. (2012, February 11). In Acronym Geek. Retrieved 21:08, February 11, 2012, from http://www.acronymgeek.com/PTBP |
| MLA | "PTBP." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/PTBP>. |
| MHRA | 'PTBP', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/PTBP> [accessed 11 February 2012] |
| Chicago | "PTBP", http://www.acronymgeek.com/PTBP (accessed February 11, 2012). |
| CBE/CSE | PTBP [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/PTBP. |
| Bluebook | PTBP, http://www.acronymgeek.com/PTBP (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTBP, http://www.acronymgeek.com/PTBP (optional description here) (as of Feb. 11, 2012, 21:08). |
| AMA | PTBP. Acronym Geek. February 11, 2012, 21:08. Available at: http://www.acronymgeek.com/PTBP. Accessed February 11, 2012, 21:08. |