| APA | IIOE. (2012, February 15). In Acronym Geek. Retrieved 23:23, February 15, 2012, from http://www.acronymgeek.com/IIOE |
| MLA | "IIOE." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/IIOE>. |
| MHRA | 'IIOE', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/IIOE> [accessed 15 February 2012] |
| Chicago | "IIOE", http://www.acronymgeek.com/IIOE (accessed February 15, 2012). |
| CBE/CSE | IIOE [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/IIOE. |
| Bluebook | IIOE, http://www.acronymgeek.com/IIOE (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IIOE, http://www.acronymgeek.com/IIOE (optional description here) (as of Feb. 15, 2012, 23:23). |
| AMA | IIOE. Acronym Geek. February 15, 2012, 23:23. Available at: http://www.acronymgeek.com/IIOE. Accessed February 15, 2012, 23:23. |