| APA | TTR. (2012, February 14). In Acronym Geek. Retrieved 09:04, February 14, 2012, from http://www.acronymgeek.com/TTR |
| MLA | "TTR." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/TTR>. |
| MHRA | 'TTR', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/TTR> [accessed 14 February 2012] |
| Chicago | "TTR", http://www.acronymgeek.com/TTR (accessed February 14, 2012). |
| CBE/CSE | TTR [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/TTR. |
| Bluebook | TTR, http://www.acronymgeek.com/TTR (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, TTR, http://www.acronymgeek.com/TTR (optional description here) (as of Feb. 14, 2012, 09:04). |
| AMA | TTR. Acronym Geek. February 14, 2012, 09:04. Available at: http://www.acronymgeek.com/TTR. Accessed February 14, 2012, 09:04. |