| APA | ECOH. (2012, February 15). In Acronym Geek. Retrieved 09:42, February 15, 2012, from http://www.acronymgeek.com/ECOH |
| MLA | "ECOH." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ECOH>. |
| MHRA | 'ECOH', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ECOH> [accessed 15 February 2012] |
| Chicago | "ECOH", http://www.acronymgeek.com/ECOH (accessed February 15, 2012). |
| CBE/CSE | ECOH [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ECOH. |
| Bluebook | ECOH, http://www.acronymgeek.com/ECOH (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECOH, http://www.acronymgeek.com/ECOH (optional description here) (as of Feb. 15, 2012, 09:42). |
| AMA | ECOH. Acronym Geek. February 15, 2012, 09:42. Available at: http://www.acronymgeek.com/ECOH. Accessed February 15, 2012, 09:42. |