| APA | IHVO. (2012, February 14). In Acronym Geek. Retrieved 13:16, February 14, 2012, from http://www.acronymgeek.com/IHVO |
| MLA | "IHVO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/IHVO>. |
| MHRA | 'IHVO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/IHVO> [accessed 14 February 2012] |
| Chicago | "IHVO", http://www.acronymgeek.com/IHVO (accessed February 14, 2012). |
| CBE/CSE | IHVO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/IHVO. |
| Bluebook | IHVO, http://www.acronymgeek.com/IHVO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IHVO, http://www.acronymgeek.com/IHVO (optional description here) (as of Feb. 14, 2012, 13:16). |
| AMA | IHVO. Acronym Geek. February 14, 2012, 13:16. Available at: http://www.acronymgeek.com/IHVO. Accessed February 14, 2012, 13:16. |