| APA | HIOW. (2012, February 14). In Acronym Geek. Retrieved 12:15, February 14, 2012, from http://www.acronymgeek.com/HIOW |
| MLA | "HIOW." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HIOW>. |
| MHRA | 'HIOW', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HIOW> [accessed 14 February 2012] |
| Chicago | "HIOW", http://www.acronymgeek.com/HIOW (accessed February 14, 2012). |
| CBE/CSE | HIOW [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HIOW. |
| Bluebook | HIOW, http://www.acronymgeek.com/HIOW (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HIOW, http://www.acronymgeek.com/HIOW (optional description here) (as of Feb. 14, 2012, 12:15). |
| AMA | HIOW. Acronym Geek. February 14, 2012, 12:15. Available at: http://www.acronymgeek.com/HIOW. Accessed February 14, 2012, 12:15. |