| APA | OBDO. (2012, February 14). In Acronym Geek. Retrieved 21:23, February 14, 2012, from http://www.acronymgeek.com/OBDO |
| MLA | "OBDO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/OBDO>. |
| MHRA | 'OBDO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/OBDO> [accessed 14 February 2012] |
| Chicago | "OBDO", http://www.acronymgeek.com/OBDO (accessed February 14, 2012). |
| CBE/CSE | OBDO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/OBDO. |
| Bluebook | OBDO, http://www.acronymgeek.com/OBDO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OBDO, http://www.acronymgeek.com/OBDO (optional description here) (as of Feb. 14, 2012, 21:23). |
| AMA | OBDO. Acronym Geek. February 14, 2012, 21:23. Available at: http://www.acronymgeek.com/OBDO. Accessed February 14, 2012, 21:23. |