| APA | EC-. (2012, February 11). In Acronym Geek. Retrieved 22:58, February 11, 2012, from http://www.acronymgeek.com/EC- |
| MLA | "EC-." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/EC->. |
| MHRA | 'EC-', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/EC-> [accessed 11 February 2012] |
| Chicago | "EC-", http://www.acronymgeek.com/EC- (accessed February 11, 2012). |
| CBE/CSE | EC- [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/EC-. |
| Bluebook | EC-, http://www.acronymgeek.com/EC- (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EC-, http://www.acronymgeek.com/EC- (optional description here) (as of Feb. 11, 2012, 22:58). |
| AMA | EC-. Acronym Geek. February 11, 2012, 22:58. Available at: http://www.acronymgeek.com/EC-. Accessed February 11, 2012, 22:58. |