| APA | B.D.. (2012, February 14). In Acronym Geek. Retrieved 19:45, February 14, 2012, from http://www.acronymgeek.com/B.D. |
| MLA | "B.D.." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/B.D.>. |
| MHRA | 'B.D.', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/B.D.> [accessed 14 February 2012] |
| Chicago | "B.D.", http://www.acronymgeek.com/B.D. (accessed February 14, 2012). |
| CBE/CSE | B.D. [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/B.D.. |
| Bluebook | B.D., http://www.acronymgeek.com/B.D. (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, B.D., http://www.acronymgeek.com/B.D. (optional description here) (as of Feb. 14, 2012, 19:45). |
| AMA | B.D.. Acronym Geek. February 14, 2012, 19:45. Available at: http://www.acronymgeek.com/B.D.. Accessed February 14, 2012, 19:45. |