| APA | OBBK. (2012, February 14). In Acronym Geek. Retrieved 08:45, February 14, 2012, from http://www.acronymgeek.com/OBBK |
| MLA | "OBBK." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OBBK>. |
| MHRA | 'OBBK', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OBBK> [accessed 14 February 2012] |
| Chicago | "OBBK", http://www.acronymgeek.com/OBBK (accessed February 14, 2012). |
| CBE/CSE | OBBK [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OBBK. |
| Bluebook | OBBK, http://www.acronymgeek.com/OBBK (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OBBK, http://www.acronymgeek.com/OBBK (optional description here) (as of Feb. 14, 2012, 08:45). |
| AMA | OBBK. Acronym Geek. February 14, 2012, 08:45. Available at: http://www.acronymgeek.com/OBBK. Accessed February 14, 2012, 08:45. |