| APA | IHHD. (2012, February 15). In Acronym Geek. Retrieved 05:21, February 15, 2012, from http://www.acronymgeek.com/IHHD |
| MLA | "IHHD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/IHHD>. |
| MHRA | 'IHHD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/IHHD> [accessed 15 February 2012] |
| Chicago | "IHHD", http://www.acronymgeek.com/IHHD (accessed February 15, 2012). |
| CBE/CSE | IHHD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/IHHD. |
| Bluebook | IHHD, http://www.acronymgeek.com/IHHD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IHHD, http://www.acronymgeek.com/IHHD (optional description here) (as of Feb. 15, 2012, 05:21). |
| AMA | IHHD. Acronym Geek. February 15, 2012, 05:21. Available at: http://www.acronymgeek.com/IHHD. Accessed February 15, 2012, 05:21. |