| APA | OKAS. (2012, February 16). In Acronym Geek. Retrieved 06:21, February 16, 2012, from http://www.acronymgeek.com/OKAS |
| MLA | "OKAS." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OKAS>. |
| MHRA | 'OKAS', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OKAS> [accessed 16 February 2012] |
| Chicago | "OKAS", http://www.acronymgeek.com/OKAS (accessed February 16, 2012). |
| CBE/CSE | OKAS [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OKAS. |
| Bluebook | OKAS, http://www.acronymgeek.com/OKAS (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OKAS, http://www.acronymgeek.com/OKAS (optional description here) (as of Feb. 16, 2012, 06:21). |
| AMA | OKAS. Acronym Geek. February 16, 2012, 06:21. Available at: http://www.acronymgeek.com/OKAS. Accessed February 16, 2012, 06:21. |