| APA | E-C. (2012, February 14). In Acronym Geek. Retrieved 09:38, February 14, 2012, from http://www.acronymgeek.com/E-C |
| MLA | "E-C." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/E-C>. |
| MHRA | 'E-C', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/E-C> [accessed 14 February 2012] |
| Chicago | "E-C", http://www.acronymgeek.com/E-C (accessed February 14, 2012). |
| CBE/CSE | E-C [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/E-C. |
| Bluebook | E-C, http://www.acronymgeek.com/E-C (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, E-C, http://www.acronymgeek.com/E-C (optional description here) (as of Feb. 14, 2012, 09:38). |
| AMA | E-C. Acronym Geek. February 14, 2012, 09:38. Available at: http://www.acronymgeek.com/E-C. Accessed February 14, 2012, 09:38. |