| APA | IIOH. (2012, February 14). In Acronym Geek. Retrieved 18:04, February 14, 2012, from http://www.acronymgeek.com/IIOH |
| MLA | "IIOH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/IIOH>. |
| MHRA | 'IIOH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/IIOH> [accessed 14 February 2012] |
| Chicago | "IIOH", http://www.acronymgeek.com/IIOH (accessed February 14, 2012). |
| CBE/CSE | IIOH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/IIOH. |
| Bluebook | IIOH, http://www.acronymgeek.com/IIOH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IIOH, http://www.acronymgeek.com/IIOH (optional description here) (as of Feb. 14, 2012, 18:04). |
| AMA | IIOH. Acronym Geek. February 14, 2012, 18:04. Available at: http://www.acronymgeek.com/IIOH. Accessed February 14, 2012, 18:04. |