| APA | 1H. (2012, February 11). In Acronym Geek. Retrieved 21:56, February 11, 2012, from http://www.acronymgeek.com/1H |
| MLA | "1H." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/1H>. |
| MHRA | '1H', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/1H> [accessed 11 February 2012] |
| Chicago | "1H", http://www.acronymgeek.com/1H (accessed February 11, 2012). |
| CBE/CSE | 1H [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/1H. |
| Bluebook | 1H, http://www.acronymgeek.com/1H (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, 1H, http://www.acronymgeek.com/1H (optional description here) (as of Feb. 11, 2012, 21:56). |
| AMA | 1H. Acronym Geek. February 11, 2012, 21:56. Available at: http://www.acronymgeek.com/1H. Accessed February 11, 2012, 21:56. |