| APA | NGG. (2012, February 13). In Acronym Geek. Retrieved 20:50, February 13, 2012, from http://www.acronymgeek.com/NGG |
| MLA | "NGG." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/NGG>. |
| MHRA | 'NGG', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/NGG> [accessed 13 February 2012] |
| Chicago | "NGG", http://www.acronymgeek.com/NGG (accessed February 13, 2012). |
| CBE/CSE | NGG [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/NGG. |
| Bluebook | NGG, http://www.acronymgeek.com/NGG (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NGG, http://www.acronymgeek.com/NGG (optional description here) (as of Feb. 13, 2012, 20:50). |
| AMA | NGG. Acronym Geek. February 13, 2012, 20:50. Available at: http://www.acronymgeek.com/NGG. Accessed February 13, 2012, 20:50. |