| APA | EC. (2012, February 17). In Acronym Geek. Retrieved 04:56, February 17, 2012, from http://www.acronymgeek.com/EC/3 |
| MLA | "EC." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/EC/3>. |
| MHRA | 'EC', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/EC/3> [accessed 17 February 2012] |
| Chicago | "EC", http://www.acronymgeek.com/EC/3 (accessed February 17, 2012). |
| CBE/CSE | EC [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/EC/3. |
| Bluebook | EC, http://www.acronymgeek.com/EC/3 (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EC, http://www.acronymgeek.com/EC/3 (optional description here) (as of Feb. 17, 2012, 04:56). |
| AMA | EC. Acronym Geek. February 17, 2012, 04:56. Available at: http://www.acronymgeek.com/EC/3. Accessed February 17, 2012, 04:56. |