| APA | HTNN. (2012, February 15). In Acronym Geek. Retrieved 05:40, February 15, 2012, from http://www.acronymgeek.com/HTNN |
| MLA | "HTNN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HTNN>. |
| MHRA | 'HTNN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HTNN> [accessed 15 February 2012] |
| Chicago | "HTNN", http://www.acronymgeek.com/HTNN (accessed February 15, 2012). |
| CBE/CSE | HTNN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HTNN. |
| Bluebook | HTNN, http://www.acronymgeek.com/HTNN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTNN, http://www.acronymgeek.com/HTNN (optional description here) (as of Feb. 15, 2012, 05:40). |
| AMA | HTNN. Acronym Geek. February 15, 2012, 05:40. Available at: http://www.acronymgeek.com/HTNN. Accessed February 15, 2012, 05:40. |