| APA | BDO. (2012, February 13). In Acronym Geek. Retrieved 21:29, February 13, 2012, from http://www.acronymgeek.com/BDO |
| MLA | "BDO." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/BDO>. |
| MHRA | 'BDO', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/BDO> [accessed 13 February 2012] |
| Chicago | "BDO", http://www.acronymgeek.com/BDO (accessed February 13, 2012). |
| CBE/CSE | BDO [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/BDO. |
| Bluebook | BDO, http://www.acronymgeek.com/BDO (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, BDO, http://www.acronymgeek.com/BDO (optional description here) (as of Feb. 13, 2012, 21:29). |
| AMA | BDO. Acronym Geek. February 13, 2012, 21:29. Available at: http://www.acronymgeek.com/BDO. Accessed February 13, 2012, 21:29. |