| APA | CES. (2012, February 14). In Acronym Geek. Retrieved 11:08, February 14, 2012, from http://www.acronymgeek.com/CES |
| MLA | "CES." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/CES>. |
| MHRA | 'CES', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/CES> [accessed 14 February 2012] |
| Chicago | "CES", http://www.acronymgeek.com/CES (accessed February 14, 2012). |
| CBE/CSE | CES [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/CES. |
| Bluebook | CES, http://www.acronymgeek.com/CES (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, CES, http://www.acronymgeek.com/CES (optional description here) (as of Feb. 14, 2012, 11:08). |
| AMA | CES. Acronym Geek. February 14, 2012, 11:08. Available at: http://www.acronymgeek.com/CES. Accessed February 14, 2012, 11:08. |