| APA | VZEI. (2012, February 17). In Acronym Geek. Retrieved 00:48, February 17, 2012, from http://www.acronymgeek.com/VZEI |
| MLA | "VZEI." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/VZEI>. |
| MHRA | 'VZEI', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/VZEI> [accessed 17 February 2012] |
| Chicago | "VZEI", http://www.acronymgeek.com/VZEI (accessed February 17, 2012). |
| CBE/CSE | VZEI [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/VZEI. |
| Bluebook | VZEI, http://www.acronymgeek.com/VZEI (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, VZEI, http://www.acronymgeek.com/VZEI (optional description here) (as of Feb. 17, 2012, 00:48). |
| AMA | VZEI. Acronym Geek. February 17, 2012, 00:48. Available at: http://www.acronymgeek.com/VZEI. Accessed February 17, 2012, 00:48. |