| APA | DBEO. (2012, February 14). In Acronym Geek. Retrieved 14:36, February 14, 2012, from http://www.acronymgeek.com/DBEO |
| MLA | "DBEO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/DBEO>. |
| MHRA | 'DBEO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/DBEO> [accessed 14 February 2012] |
| Chicago | "DBEO", http://www.acronymgeek.com/DBEO (accessed February 14, 2012). |
| CBE/CSE | DBEO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/DBEO. |
| Bluebook | DBEO, http://www.acronymgeek.com/DBEO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DBEO, http://www.acronymgeek.com/DBEO (optional description here) (as of Feb. 14, 2012, 14:36). |
| AMA | DBEO. Acronym Geek. February 14, 2012, 14:36. Available at: http://www.acronymgeek.com/DBEO. Accessed February 14, 2012, 14:36. |