| APA | SDBO. (2012, February 15). In Acronym Geek. Retrieved 23:40, February 15, 2012, from http://www.acronymgeek.com/SDBO |
| MLA | "SDBO." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/SDBO>. |
| MHRA | 'SDBO', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/SDBO> [accessed 15 February 2012] |
| Chicago | "SDBO", http://www.acronymgeek.com/SDBO (accessed February 15, 2012). |
| CBE/CSE | SDBO [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/SDBO. |
| Bluebook | SDBO, http://www.acronymgeek.com/SDBO (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SDBO, http://www.acronymgeek.com/SDBO (optional description here) (as of Feb. 15, 2012, 23:40). |
| AMA | SDBO. Acronym Geek. February 15, 2012, 23:40. Available at: http://www.acronymgeek.com/SDBO. Accessed February 15, 2012, 23:40. |