| APA | IKO. (2012, February 14). In Acronym Geek. Retrieved 09:54, February 14, 2012, from http://www.acronymgeek.com/IKO |
| MLA | "IKO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/IKO>. |
| MHRA | 'IKO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/IKO> [accessed 14 February 2012] |
| Chicago | "IKO", http://www.acronymgeek.com/IKO (accessed February 14, 2012). |
| CBE/CSE | IKO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/IKO. |
| Bluebook | IKO, http://www.acronymgeek.com/IKO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IKO, http://www.acronymgeek.com/IKO (optional description here) (as of Feb. 14, 2012, 09:54). |
| AMA | IKO. Acronym Geek. February 14, 2012, 09:54. Available at: http://www.acronymgeek.com/IKO. Accessed February 14, 2012, 09:54. |