| APA | ETL. (2012, February 14). In Acronym Geek. Retrieved 09:23, February 14, 2012, from http://www.acronymgeek.com/ETL |
| MLA | "ETL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ETL>. |
| MHRA | 'ETL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ETL> [accessed 14 February 2012] |
| Chicago | "ETL", http://www.acronymgeek.com/ETL (accessed February 14, 2012). |
| CBE/CSE | ETL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ETL. |
| Bluebook | ETL, http://www.acronymgeek.com/ETL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETL, http://www.acronymgeek.com/ETL (optional description here) (as of Feb. 14, 2012, 09:23). |
| AMA | ETL. Acronym Geek. February 14, 2012, 09:23. Available at: http://www.acronymgeek.com/ETL. Accessed February 14, 2012, 09:23. |