| APA | OBEP. (2012, February 15). In Acronym Geek. Retrieved 06:58, February 15, 2012, from http://www.acronymgeek.com/OBEP |
| MLA | "OBEP." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OBEP>. |
| MHRA | 'OBEP', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OBEP> [accessed 15 February 2012] |
| Chicago | "OBEP", http://www.acronymgeek.com/OBEP (accessed February 15, 2012). |
| CBE/CSE | OBEP [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OBEP. |
| Bluebook | OBEP, http://www.acronymgeek.com/OBEP (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OBEP, http://www.acronymgeek.com/OBEP (optional description here) (as of Feb. 15, 2012, 06:58). |
| AMA | OBEP. Acronym Geek. February 15, 2012, 06:58. Available at: http://www.acronymgeek.com/OBEP. Accessed February 15, 2012, 06:58. |