| APA | SPBD. (2012, February 15). In Acronym Geek. Retrieved 03:04, February 15, 2012, from http://www.acronymgeek.com/SPBD |
| MLA | "SPBD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/SPBD>. |
| MHRA | 'SPBD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/SPBD> [accessed 15 February 2012] |
| Chicago | "SPBD", http://www.acronymgeek.com/SPBD (accessed February 15, 2012). |
| CBE/CSE | SPBD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/SPBD. |
| Bluebook | SPBD, http://www.acronymgeek.com/SPBD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SPBD, http://www.acronymgeek.com/SPBD (optional description here) (as of Feb. 15, 2012, 03:04). |
| AMA | SPBD. Acronym Geek. February 15, 2012, 03:04. Available at: http://www.acronymgeek.com/SPBD. Accessed February 15, 2012, 03:04. |