| APA | NIEL. (2012, February 14). In Acronym Geek. Retrieved 18:21, February 14, 2012, from http://www.acronymgeek.com/NIEL |
| MLA | "NIEL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/NIEL>. |
| MHRA | 'NIEL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/NIEL> [accessed 14 February 2012] |
| Chicago | "NIEL", http://www.acronymgeek.com/NIEL (accessed February 14, 2012). |
| CBE/CSE | NIEL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/NIEL. |
| Bluebook | NIEL, http://www.acronymgeek.com/NIEL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NIEL, http://www.acronymgeek.com/NIEL (optional description here) (as of Feb. 14, 2012, 18:21). |
| AMA | NIEL. Acronym Geek. February 14, 2012, 18:21. Available at: http://www.acronymgeek.com/NIEL. Accessed February 14, 2012, 18:21. |