| APA | PNVL. (2012, February 14). In Acronym Geek. Retrieved 18:16, February 14, 2012, from http://www.acronymgeek.com/PNVL |
| MLA | "PNVL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/PNVL>. |
| MHRA | 'PNVL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/PNVL> [accessed 14 February 2012] |
| Chicago | "PNVL", http://www.acronymgeek.com/PNVL (accessed February 14, 2012). |
| CBE/CSE | PNVL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/PNVL. |
| Bluebook | PNVL, http://www.acronymgeek.com/PNVL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, PNVL, http://www.acronymgeek.com/PNVL (optional description here) (as of Feb. 14, 2012, 18:16). |
| AMA | PNVL. Acronym Geek. February 14, 2012, 18:16. Available at: http://www.acronymgeek.com/PNVL. Accessed February 14, 2012, 18:16. |