| APA | HHIR. (2012, February 15). In Acronym Geek. Retrieved 12:44, February 15, 2012, from http://www.acronymgeek.com/HHIR |
| MLA | "HHIR." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HHIR>. |
| MHRA | 'HHIR', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HHIR> [accessed 15 February 2012] |
| Chicago | "HHIR", http://www.acronymgeek.com/HHIR (accessed February 15, 2012). |
| CBE/CSE | HHIR [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HHIR. |
| Bluebook | HHIR, http://www.acronymgeek.com/HHIR (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHIR, http://www.acronymgeek.com/HHIR (optional description here) (as of Feb. 15, 2012, 12:44). |
| AMA | HHIR. Acronym Geek. February 15, 2012, 12:44. Available at: http://www.acronymgeek.com/HHIR. Accessed February 15, 2012, 12:44. |