| APA | ATIU. (2012, February 16). In Acronym Geek. Retrieved 20:03, February 16, 2012, from http://www.acronymgeek.com/ATIU |
| MLA | "ATIU." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ATIU>. |
| MHRA | 'ATIU', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ATIU> [accessed 16 February 2012] |
| Chicago | "ATIU", http://www.acronymgeek.com/ATIU (accessed February 16, 2012). |
| CBE/CSE | ATIU [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ATIU. |
| Bluebook | ATIU, http://www.acronymgeek.com/ATIU (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ATIU, http://www.acronymgeek.com/ATIU (optional description here) (as of Feb. 16, 2012, 20:03). |
| AMA | ATIU. Acronym Geek. February 16, 2012, 20:03. Available at: http://www.acronymgeek.com/ATIU. Accessed February 16, 2012, 20:03. |