| APA | Engineering Change Request (ECR). (2012, February 14). In Acronym Geek. Retrieved 05:55, February 14, 2012, from http://www.acronymgeek.com/ECR/Engineering_Change_Request |
| MLA | "Engineering Change Request (ECR)." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ECR/Engineering_Change_Request>. |
| MHRA | 'Engineering Change Request (ECR)', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ECR/Engineering_Change_Request> [accessed 14 February 2012] |
| Chicago | "Engineering Change Request (ECR)", http://www.acronymgeek.com/ECR/Engineering_Change_Request (accessed February 14, 2012). |
| CBE/CSE | Engineering Change Request (ECR) [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ECR/Engineering_Change_Request. |
| Bluebook | Engineering Change Request (ECR), http://www.acronymgeek.com/ECR/Engineering_Change_Request (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, Engineering Change Request (ECR), http://www.acronymgeek.com/ECR/Engineering_Change_Request (optional description here) (as of Feb. 14, 2012, 05:55). |
| AMA | Engineering Change Request (ECR). Acronym Geek. February 14, 2012, 05:55. Available at: http://www.acronymgeek.com/ECR/Engineering_Change_Request. Accessed February 14, 2012, 05:55. |