| APA | PTBV. (2012, February 12). In Acronym Geek. Retrieved 07:16, February 12, 2012, from http://www.acronymgeek.com/PTBV |
| MLA | "PTBV." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/PTBV>. |
| MHRA | 'PTBV', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/PTBV> [accessed 12 February 2012] |
| Chicago | "PTBV", http://www.acronymgeek.com/PTBV (accessed February 12, 2012). |
| CBE/CSE | PTBV [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/PTBV. |
| Bluebook | PTBV, http://www.acronymgeek.com/PTBV (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PTBV, http://www.acronymgeek.com/PTBV (optional description here) (as of Feb. 12, 2012, 07:16). |
| AMA | PTBV. Acronym Geek. February 12, 2012, 07:16. Available at: http://www.acronymgeek.com/PTBV. Accessed February 12, 2012, 07:16. |