| APA | NNHL. (2012, February 16). In Acronym Geek. Retrieved 10:28, February 16, 2012, from http://www.acronymgeek.com/NNHL |
| MLA | "NNHL." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/NNHL>. |
| MHRA | 'NNHL', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/NNHL> [accessed 16 February 2012] |
| Chicago | "NNHL", http://www.acronymgeek.com/NNHL (accessed February 16, 2012). |
| CBE/CSE | NNHL [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/NNHL. |
| Bluebook | NNHL, http://www.acronymgeek.com/NNHL (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNHL, http://www.acronymgeek.com/NNHL (optional description here) (as of Feb. 16, 2012, 10:28). |
| AMA | NNHL. Acronym Geek. February 16, 2012, 10:28. Available at: http://www.acronymgeek.com/NNHL. Accessed February 16, 2012, 10:28. |