| APA | NNG. (2012, February 13). In Acronym Geek. Retrieved 20:52, February 13, 2012, from http://www.acronymgeek.com/NNG |
| MLA | "NNG." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/NNG>. |
| MHRA | 'NNG', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/NNG> [accessed 13 February 2012] |
| Chicago | "NNG", http://www.acronymgeek.com/NNG (accessed February 13, 2012). |
| CBE/CSE | NNG [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/NNG. |
| Bluebook | NNG, http://www.acronymgeek.com/NNG (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NNG, http://www.acronymgeek.com/NNG (optional description here) (as of Feb. 13, 2012, 20:52). |
| AMA | NNG. Acronym Geek. February 13, 2012, 20:52. Available at: http://www.acronymgeek.com/NNG. Accessed February 13, 2012, 20:52. |