| APA | ECY. (2012, February 11). In Acronym Geek. Retrieved 20:58, February 11, 2012, from http://www.acronymgeek.com/ECY |
| MLA | "ECY." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/ECY>. |
| MHRA | 'ECY', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/ECY> [accessed 11 February 2012] |
| Chicago | "ECY", http://www.acronymgeek.com/ECY (accessed February 11, 2012). |
| CBE/CSE | ECY [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/ECY. |
| Bluebook | ECY, http://www.acronymgeek.com/ECY (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECY, http://www.acronymgeek.com/ECY (optional description here) (as of Feb. 11, 2012, 20:58). |
| AMA | ECY. Acronym Geek. February 11, 2012, 20:58. Available at: http://www.acronymgeek.com/ECY. Accessed February 11, 2012, 20:58. |