| APA | ETWL. (2012, February 15). In Acronym Geek. Retrieved 08:45, February 15, 2012, from http://www.acronymgeek.com/ETWL |
| MLA | "ETWL." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ETWL>. |
| MHRA | 'ETWL', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ETWL> [accessed 15 February 2012] |
| Chicago | "ETWL", http://www.acronymgeek.com/ETWL (accessed February 15, 2012). |
| CBE/CSE | ETWL [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ETWL. |
| Bluebook | ETWL, http://www.acronymgeek.com/ETWL (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETWL, http://www.acronymgeek.com/ETWL (optional description here) (as of Feb. 15, 2012, 08:45). |
| AMA | ETWL. Acronym Geek. February 15, 2012, 08:45. Available at: http://www.acronymgeek.com/ETWL. Accessed February 15, 2012, 08:45. |