| APA | ECUM. (2012, February 15). In Acronym Geek. Retrieved 23:57, February 15, 2012, from http://www.acronymgeek.com/ECUM |
| MLA | "ECUM." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ECUM>. |
| MHRA | 'ECUM', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ECUM> [accessed 15 February 2012] |
| Chicago | "ECUM", http://www.acronymgeek.com/ECUM (accessed February 15, 2012). |
| CBE/CSE | ECUM [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ECUM. |
| Bluebook | ECUM, http://www.acronymgeek.com/ECUM (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECUM, http://www.acronymgeek.com/ECUM (optional description here) (as of Feb. 15, 2012, 23:57). |
| AMA | ECUM. Acronym Geek. February 15, 2012, 23:57. Available at: http://www.acronymgeek.com/ECUM. Accessed February 15, 2012, 23:57. |