| APA | ETWCU. (2012, February 12). In Acronym Geek. Retrieved 11:50, February 12, 2012, from http://www.acronymgeek.com/ETWCU |
| MLA | "ETWCU." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/ETWCU>. |
| MHRA | 'ETWCU', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/ETWCU> [accessed 12 February 2012] |
| Chicago | "ETWCU", http://www.acronymgeek.com/ETWCU (accessed February 12, 2012). |
| CBE/CSE | ETWCU [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/ETWCU. |
| Bluebook | ETWCU, http://www.acronymgeek.com/ETWCU (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETWCU, http://www.acronymgeek.com/ETWCU (optional description here) (as of Feb. 12, 2012, 11:50). |
| AMA | ETWCU. Acronym Geek. February 12, 2012, 11:50. Available at: http://www.acronymgeek.com/ETWCU. Accessed February 12, 2012, 11:50. |