| APA | ECM. (2012, February 9). In Acronym Geek. Retrieved 03:52, February 9, 2012, from http://www.acronymgeek.com/ECM |
| MLA | "ECM." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/ECM>. |
| MHRA | 'ECM', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/ECM> [accessed 9 February 2012] |
| Chicago | "ECM", http://www.acronymgeek.com/ECM (accessed February 9, 2012). |
| CBE/CSE | ECM [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/ECM. |
| Bluebook | ECM, http://www.acronymgeek.com/ECM (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECM, http://www.acronymgeek.com/ECM (optional description here) (as of Feb. 9, 2012, 03:52). |
| AMA | ECM. Acronym Geek. February 9, 2012, 03:52. Available at: http://www.acronymgeek.com/ECM. Accessed February 9, 2012, 03:52. |