| APA | ETT. (2012, February 9). In Acronym Geek. Retrieved 20:20, February 9, 2012, from http://www.acronymgeek.com/ETT |
| MLA | "ETT." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/ETT>. |
| MHRA | 'ETT', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/ETT> [accessed 9 February 2012] |
| Chicago | "ETT", http://www.acronymgeek.com/ETT (accessed February 9, 2012). |
| CBE/CSE | ETT [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/ETT. |
| Bluebook | ETT, http://www.acronymgeek.com/ETT (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ETT, http://www.acronymgeek.com/ETT (optional description here) (as of Feb. 9, 2012, 20:20). |
| AMA | ETT. Acronym Geek. February 9, 2012, 20:20. Available at: http://www.acronymgeek.com/ETT. Accessed February 9, 2012, 20:20. |