| APA | SDE. (2012, February 8). In Acronym Geek. Retrieved 19:53, February 8, 2012, from http://www.acronymgeek.com/SDE |
| MLA | "SDE." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/SDE>. |
| MHRA | 'SDE', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/SDE> [accessed 8 February 2012] |
| Chicago | "SDE", http://www.acronymgeek.com/SDE (accessed February 8, 2012). |
| CBE/CSE | SDE [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/SDE. |
| Bluebook | SDE, http://www.acronymgeek.com/SDE (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, SDE, http://www.acronymgeek.com/SDE (optional description here) (as of Feb. 8, 2012, 19:53). |
| AMA | SDE. Acronym Geek. February 8, 2012, 19:53. Available at: http://www.acronymgeek.com/SDE. Accessed February 8, 2012, 19:53. |