| APA | EF-TU. (2012, February 12). In Acronym Geek. Retrieved 12:07, February 12, 2012, from http://www.acronymgeek.com/EF-TU |
| MLA | "EF-TU." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/EF-TU>. |
| MHRA | 'EF-TU', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/EF-TU> [accessed 12 February 2012] |
| Chicago | "EF-TU", http://www.acronymgeek.com/EF-TU (accessed February 12, 2012). |
| CBE/CSE | EF-TU [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/EF-TU. |
| Bluebook | EF-TU, http://www.acronymgeek.com/EF-TU (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EF-TU, http://www.acronymgeek.com/EF-TU (optional description here) (as of Feb. 12, 2012, 12:07). |
| AMA | EF-TU. Acronym Geek. February 12, 2012, 12:07. Available at: http://www.acronymgeek.com/EF-TU. Accessed February 12, 2012, 12:07. |