| APA | SDP. (2012, February 14). In Acronym Geek. Retrieved 19:27, February 14, 2012, from http://www.acronymgeek.com/SDP |
| MLA | "SDP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/SDP>. |
| MHRA | 'SDP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/SDP> [accessed 14 February 2012] |
| Chicago | "SDP", http://www.acronymgeek.com/SDP (accessed February 14, 2012). |
| CBE/CSE | SDP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/SDP. |
| Bluebook | SDP, http://www.acronymgeek.com/SDP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SDP, http://www.acronymgeek.com/SDP (optional description here) (as of Feb. 14, 2012, 19:27). |
| AMA | SDP. Acronym Geek. February 14, 2012, 19:27. Available at: http://www.acronymgeek.com/SDP. Accessed February 14, 2012, 19:27. |