| APA | NGNN. (2012, February 17). In Acronym Geek. Retrieved 05:12, February 17, 2012, from http://www.acronymgeek.com/NGNN |
| MLA | "NGNN." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/NGNN>. |
| MHRA | 'NGNN', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/NGNN> [accessed 17 February 2012] |
| Chicago | "NGNN", http://www.acronymgeek.com/NGNN (accessed February 17, 2012). |
| CBE/CSE | NGNN [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/NGNN. |
| Bluebook | NGNN, http://www.acronymgeek.com/NGNN (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NGNN, http://www.acronymgeek.com/NGNN (optional description here) (as of Feb. 17, 2012, 05:12). |
| AMA | NGNN. Acronym Geek. February 17, 2012, 05:12. Available at: http://www.acronymgeek.com/NGNN. Accessed February 17, 2012, 05:12. |