| APA | TTYY. (2012, February 15). In Acronym Geek. Retrieved 09:08, February 15, 2012, from http://www.acronymgeek.com/TTYY |
| MLA | "TTYY." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/TTYY>. |
| MHRA | 'TTYY', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/TTYY> [accessed 15 February 2012] |
| Chicago | "TTYY", http://www.acronymgeek.com/TTYY (accessed February 15, 2012). |
| CBE/CSE | TTYY [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/TTYY. |
| Bluebook | TTYY, http://www.acronymgeek.com/TTYY (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TTYY, http://www.acronymgeek.com/TTYY (optional description here) (as of Feb. 15, 2012, 09:08). |
| AMA | TTYY. Acronym Geek. February 15, 2012, 09:08. Available at: http://www.acronymgeek.com/TTYY. Accessed February 15, 2012, 09:08. |