| APA | OBEU. (2012, February 16). In Acronym Geek. Retrieved 19:45, February 16, 2012, from http://www.acronymgeek.com/OBEU |
| MLA | "OBEU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/OBEU>. |
| MHRA | 'OBEU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/OBEU> [accessed 16 February 2012] |
| Chicago | "OBEU", http://www.acronymgeek.com/OBEU (accessed February 16, 2012). |
| CBE/CSE | OBEU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/OBEU. |
| Bluebook | OBEU, http://www.acronymgeek.com/OBEU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OBEU, http://www.acronymgeek.com/OBEU (optional description here) (as of Feb. 16, 2012, 19:45). |
| AMA | OBEU. Acronym Geek. February 16, 2012, 19:45. Available at: http://www.acronymgeek.com/OBEU. Accessed February 16, 2012, 19:45. |