| APA | ETCS. (2012, February 10). In Acronym Geek. Retrieved 11:51, February 10, 2012, from http://www.acronymgeek.com/ETCS |
| MLA | "ETCS." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/ETCS>. |
| MHRA | 'ETCS', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/ETCS> [accessed 10 February 2012] |
| Chicago | "ETCS", http://www.acronymgeek.com/ETCS (accessed February 10, 2012). |
| CBE/CSE | ETCS [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/ETCS. |
| Bluebook | ETCS, http://www.acronymgeek.com/ETCS (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETCS, http://www.acronymgeek.com/ETCS (optional description here) (as of Feb. 10, 2012, 11:51). |
| AMA | ETCS. Acronym Geek. February 10, 2012, 11:51. Available at: http://www.acronymgeek.com/ETCS. Accessed February 10, 2012, 11:51. |