| APA | KHAO. (2012, February 11). In Acronym Geek. Retrieved 19:10, February 11, 2012, from http://www.acronymgeek.com/KHAO |
| MLA | "KHAO." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/KHAO>. |
| MHRA | 'KHAO', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/KHAO> [accessed 11 February 2012] |
| Chicago | "KHAO", http://www.acronymgeek.com/KHAO (accessed February 11, 2012). |
| CBE/CSE | KHAO [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/KHAO. |
| Bluebook | KHAO, http://www.acronymgeek.com/KHAO (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, KHAO, http://www.acronymgeek.com/KHAO (optional description here) (as of Feb. 11, 2012, 19:10). |
| AMA | KHAO. Acronym Geek. February 11, 2012, 19:10. Available at: http://www.acronymgeek.com/KHAO. Accessed February 11, 2012, 19:10. |