| APA | TEO. (2012, February 14). In Acronym Geek. Retrieved 07:38, February 14, 2012, from http://www.acronymgeek.com/TEO |
| MLA | "TEO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/TEO>. |
| MHRA | 'TEO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/TEO> [accessed 14 February 2012] |
| Chicago | "TEO", http://www.acronymgeek.com/TEO (accessed February 14, 2012). |
| CBE/CSE | TEO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/TEO. |
| Bluebook | TEO, http://www.acronymgeek.com/TEO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TEO, http://www.acronymgeek.com/TEO (optional description here) (as of Feb. 14, 2012, 07:38). |
| AMA | TEO. Acronym Geek. February 14, 2012, 07:38. Available at: http://www.acronymgeek.com/TEO. Accessed February 14, 2012, 07:38. |