| APA | TTEI. (2012, February 14). In Acronym Geek. Retrieved 18:14, February 14, 2012, from http://www.acronymgeek.com/TTEI |
| MLA | "TTEI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/TTEI>. |
| MHRA | 'TTEI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/TTEI> [accessed 14 February 2012] |
| Chicago | "TTEI", http://www.acronymgeek.com/TTEI (accessed February 14, 2012). |
| CBE/CSE | TTEI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/TTEI. |
| Bluebook | TTEI, http://www.acronymgeek.com/TTEI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TTEI, http://www.acronymgeek.com/TTEI (optional description here) (as of Feb. 14, 2012, 18:14). |
| AMA | TTEI. Acronym Geek. February 14, 2012, 18:14. Available at: http://www.acronymgeek.com/TTEI. Accessed February 14, 2012, 18:14. |