| APA | PVOB. (2012, February 16). In Acronym Geek. Retrieved 18:12, February 16, 2012, from http://www.acronymgeek.com/PVOB |
| MLA | "PVOB." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PVOB>. |
| MHRA | 'PVOB', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PVOB> [accessed 16 February 2012] |
| Chicago | "PVOB", http://www.acronymgeek.com/PVOB (accessed February 16, 2012). |
| CBE/CSE | PVOB [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PVOB. |
| Bluebook | PVOB, http://www.acronymgeek.com/PVOB (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PVOB, http://www.acronymgeek.com/PVOB (optional description here) (as of Feb. 16, 2012, 18:12). |
| AMA | PVOB. Acronym Geek. February 16, 2012, 18:12. Available at: http://www.acronymgeek.com/PVOB. Accessed February 16, 2012, 18:12. |