| APA | DE&S. (2012, February 12). In Acronym Geek. Retrieved 15:33, February 12, 2012, from http://www.acronymgeek.com/DE&S |
| MLA | "DE&S." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/DE&S>. |
| MHRA | 'DE&S', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/DE&S> [accessed 12 February 2012] |
| Chicago | "DE&S", http://www.acronymgeek.com/DE&S (accessed February 12, 2012). |
| CBE/CSE | DE&S [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/DE&S. |
| Bluebook | DE&S, http://www.acronymgeek.com/DE&S (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DE&S, http://www.acronymgeek.com/DE&S (optional description here) (as of Feb. 12, 2012, 15:33). |
| AMA | DE&S. Acronym Geek. February 12, 2012, 15:33. Available at: http://www.acronymgeek.com/DE&S. Accessed February 12, 2012, 15:33. |