| APA | DD/S.. (2012, February 11). In Acronym Geek. Retrieved 17:22, February 11, 2012, from http://www.acronymgeek.com/DD/S. |
| MLA | "DD/S.." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/DD/S.>. |
| MHRA | 'DD/S.', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/DD/S.> [accessed 11 February 2012] |
| Chicago | "DD/S.", http://www.acronymgeek.com/DD/S. (accessed February 11, 2012). |
| CBE/CSE | DD/S. [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/DD/S.. |
| Bluebook | DD/S., http://www.acronymgeek.com/DD/S. (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DD/S., http://www.acronymgeek.com/DD/S. (optional description here) (as of Feb. 11, 2012, 17:22). |
| AMA | DD/S.. Acronym Geek. February 11, 2012, 17:22. Available at: http://www.acronymgeek.com/DD/S.. Accessed February 11, 2012, 17:22. |