| APA | ECG. (2012, February 14). In Acronym Geek. Retrieved 03:23, February 14, 2012, from http://www.acronymgeek.com/ECG/2 |
| MLA | "ECG." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ECG/2>. |
| MHRA | 'ECG', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ECG/2> [accessed 14 February 2012] |
| Chicago | "ECG", http://www.acronymgeek.com/ECG/2 (accessed February 14, 2012). |
| CBE/CSE | ECG [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ECG/2. |
| Bluebook | ECG, http://www.acronymgeek.com/ECG/2 (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECG, http://www.acronymgeek.com/ECG/2 (optional description here) (as of Feb. 14, 2012, 03:23). |
| AMA | ECG. Acronym Geek. February 14, 2012, 03:23. Available at: http://www.acronymgeek.com/ECG/2. Accessed February 14, 2012, 03:23. |