| APA | OKBN. (2012, February 15). In Acronym Geek. Retrieved 03:04, February 15, 2012, from http://www.acronymgeek.com/OKBN |
| MLA | "OKBN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OKBN>. |
| MHRA | 'OKBN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OKBN> [accessed 15 February 2012] |
| Chicago | "OKBN", http://www.acronymgeek.com/OKBN (accessed February 15, 2012). |
| CBE/CSE | OKBN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OKBN. |
| Bluebook | OKBN, http://www.acronymgeek.com/OKBN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OKBN, http://www.acronymgeek.com/OKBN (optional description here) (as of Feb. 15, 2012, 03:04). |
| AMA | OKBN. Acronym Geek. February 15, 2012, 03:04. Available at: http://www.acronymgeek.com/OKBN. Accessed February 15, 2012, 03:04. |