| APA | SDT. (2012, February 14). In Acronym Geek. Retrieved 02:02, February 14, 2012, from http://www.acronymgeek.com/SDT |
| MLA | "SDT." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/SDT>. |
| MHRA | 'SDT', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/SDT> [accessed 14 February 2012] |
| Chicago | "SDT", http://www.acronymgeek.com/SDT (accessed February 14, 2012). |
| CBE/CSE | SDT [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/SDT. |
| Bluebook | SDT, http://www.acronymgeek.com/SDT (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SDT, http://www.acronymgeek.com/SDT (optional description here) (as of Feb. 14, 2012, 02:02). |
| AMA | SDT. Acronym Geek. February 14, 2012, 02:02. Available at: http://www.acronymgeek.com/SDT. Accessed February 14, 2012, 02:02. |