| APA | PVNO. (2012, February 16). In Acronym Geek. Retrieved 10:30, February 16, 2012, from http://www.acronymgeek.com/PVNO |
| MLA | "PVNO." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/PVNO>. |
| MHRA | 'PVNO', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/PVNO> [accessed 16 February 2012] |
| Chicago | "PVNO", http://www.acronymgeek.com/PVNO (accessed February 16, 2012). |
| CBE/CSE | PVNO [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/PVNO. |
| Bluebook | PVNO, http://www.acronymgeek.com/PVNO (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PVNO, http://www.acronymgeek.com/PVNO (optional description here) (as of Feb. 16, 2012, 10:30). |
| AMA | PVNO. Acronym Geek. February 16, 2012, 10:30. Available at: http://www.acronymgeek.com/PVNO. Accessed February 16, 2012, 10:30. |