| APA | AT U. (2012, February 12). In Acronym Geek. Retrieved 03:22, February 12, 2012, from http://www.acronymgeek.com/AT U |
| MLA | "AT U." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/AT U>. |
| MHRA | 'AT U', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/AT U> [accessed 12 February 2012] |
| Chicago | "AT U", http://www.acronymgeek.com/AT U (accessed February 12, 2012). |
| CBE/CSE | AT U [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/AT U. |
| Bluebook | AT U, http://www.acronymgeek.com/AT U (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, AT U, http://www.acronymgeek.com/AT U (optional description here) (as of Feb. 12, 2012, 03:22). |
| AMA | AT U. Acronym Geek. February 12, 2012, 03:22. Available at: http://www.acronymgeek.com/AT U. Accessed February 12, 2012, 03:22. |