| APA | NNEI. (2012, February 14). In Acronym Geek. Retrieved 12:44, February 14, 2012, from http://www.acronymgeek.com/NNEI |
| MLA | "NNEI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NNEI>. |
| MHRA | 'NNEI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NNEI> [accessed 14 February 2012] |
| Chicago | "NNEI", http://www.acronymgeek.com/NNEI (accessed February 14, 2012). |
| CBE/CSE | NNEI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NNEI. |
| Bluebook | NNEI, http://www.acronymgeek.com/NNEI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNEI, http://www.acronymgeek.com/NNEI (optional description here) (as of Feb. 14, 2012, 12:44). |
| AMA | NNEI. Acronym Geek. February 14, 2012, 12:44. Available at: http://www.acronymgeek.com/NNEI. Accessed February 14, 2012, 12:44. |