| APA | SPNV. (2012, February 14). In Acronym Geek. Retrieved 22:44, February 14, 2012, from http://www.acronymgeek.com/SPNV |
| MLA | "SPNV." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/SPNV>. |
| MHRA | 'SPNV', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/SPNV> [accessed 14 February 2012] |
| Chicago | "SPNV", http://www.acronymgeek.com/SPNV (accessed February 14, 2012). |
| CBE/CSE | SPNV [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/SPNV. |
| Bluebook | SPNV, http://www.acronymgeek.com/SPNV (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPNV, http://www.acronymgeek.com/SPNV (optional description here) (as of Feb. 14, 2012, 22:44). |
| AMA | SPNV. Acronym Geek. February 14, 2012, 22:44. Available at: http://www.acronymgeek.com/SPNV. Accessed February 14, 2012, 22:44. |