| APA | OBAL. (2012, February 15). In Acronym Geek. Retrieved 18:43, February 15, 2012, from http://www.acronymgeek.com/OBAL |
| MLA | "OBAL." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OBAL>. |
| MHRA | 'OBAL', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OBAL> [accessed 15 February 2012] |
| Chicago | "OBAL", http://www.acronymgeek.com/OBAL (accessed February 15, 2012). |
| CBE/CSE | OBAL [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OBAL. |
| Bluebook | OBAL, http://www.acronymgeek.com/OBAL (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OBAL, http://www.acronymgeek.com/OBAL (optional description here) (as of Feb. 15, 2012, 18:43). |
| AMA | OBAL. Acronym Geek. February 15, 2012, 18:43. Available at: http://www.acronymgeek.com/OBAL. Accessed February 15, 2012, 18:43. |