| APA | ENPV. (2012, February 15). In Acronym Geek. Retrieved 10:51, February 15, 2012, from http://www.acronymgeek.com/ENPV |
| MLA | "ENPV." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ENPV>. |
| MHRA | 'ENPV', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ENPV> [accessed 15 February 2012] |
| Chicago | "ENPV", http://www.acronymgeek.com/ENPV (accessed February 15, 2012). |
| CBE/CSE | ENPV [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ENPV. |
| Bluebook | ENPV, http://www.acronymgeek.com/ENPV (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ENPV, http://www.acronymgeek.com/ENPV (optional description here) (as of Feb. 15, 2012, 10:51). |
| AMA | ENPV. Acronym Geek. February 15, 2012, 10:51. Available at: http://www.acronymgeek.com/ENPV. Accessed February 15, 2012, 10:51. |