| APA | EW/IOH. (2012, February 12). In Acronym Geek. Retrieved 11:28, February 12, 2012, from http://www.acronymgeek.com/EW/IOH |
| MLA | "EW/IOH." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/EW/IOH>. |
| MHRA | 'EW/IOH', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/EW/IOH> [accessed 12 February 2012] |
| Chicago | "EW/IOH", http://www.acronymgeek.com/EW/IOH (accessed February 12, 2012). |
| CBE/CSE | EW/IOH [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/EW/IOH. |
| Bluebook | EW/IOH, http://www.acronymgeek.com/EW/IOH (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EW/IOH, http://www.acronymgeek.com/EW/IOH (optional description here) (as of Feb. 12, 2012, 11:28). |
| AMA | EW/IOH. Acronym Geek. February 12, 2012, 11:28. Available at: http://www.acronymgeek.com/EW/IOH. Accessed February 12, 2012, 11:28. |