| APA | TEOS. (2012, February 9). In Acronym Geek. Retrieved 20:13, February 9, 2012, from http://www.acronymgeek.com/TEOS |
| MLA | "TEOS." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/TEOS>. |
| MHRA | 'TEOS', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/TEOS> [accessed 9 February 2012] |
| Chicago | "TEOS", http://www.acronymgeek.com/TEOS (accessed February 9, 2012). |
| CBE/CSE | TEOS [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/TEOS. |
| Bluebook | TEOS, http://www.acronymgeek.com/TEOS (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TEOS, http://www.acronymgeek.com/TEOS (optional description here) (as of Feb. 9, 2012, 20:13). |
| AMA | TEOS. Acronym Geek. February 9, 2012, 20:13. Available at: http://www.acronymgeek.com/TEOS. Accessed February 9, 2012, 20:13. |