| APA | IHR. (2012, February 9). In Acronym Geek. Retrieved 20:56, February 9, 2012, from http://www.acronymgeek.com/IHR |
| MLA | "IHR." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/IHR>. |
| MHRA | 'IHR', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/IHR> [accessed 9 February 2012] |
| Chicago | "IHR", http://www.acronymgeek.com/IHR (accessed February 9, 2012). |
| CBE/CSE | IHR [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/IHR. |
| Bluebook | IHR, http://www.acronymgeek.com/IHR (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IHR, http://www.acronymgeek.com/IHR (optional description here) (as of Feb. 9, 2012, 20:56). |
| AMA | IHR. Acronym Geek. February 9, 2012, 20:56. Available at: http://www.acronymgeek.com/IHR. Accessed February 9, 2012, 20:56. |