| APA | NHGS. (2012, February 15). In Acronym Geek. Retrieved 14:06, February 15, 2012, from http://www.acronymgeek.com/NHGS |
| MLA | "NHGS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/NHGS>. |
| MHRA | 'NHGS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/NHGS> [accessed 15 February 2012] |
| Chicago | "NHGS", http://www.acronymgeek.com/NHGS (accessed February 15, 2012). |
| CBE/CSE | NHGS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/NHGS. |
| Bluebook | NHGS, http://www.acronymgeek.com/NHGS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, NHGS, http://www.acronymgeek.com/NHGS (optional description here) (as of Feb. 15, 2012, 14:06). |
| AMA | NHGS. Acronym Geek. February 15, 2012, 14:06. Available at: http://www.acronymgeek.com/NHGS. Accessed February 15, 2012, 14:06. |