| APA | OATU. (2012, February 15). In Acronym Geek. Retrieved 21:44, February 15, 2012, from http://www.acronymgeek.com/OATU |
| MLA | "OATU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/OATU>. |
| MHRA | 'OATU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/OATU> [accessed 15 February 2012] |
| Chicago | "OATU", http://www.acronymgeek.com/OATU (accessed February 15, 2012). |
| CBE/CSE | OATU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/OATU. |
| Bluebook | OATU, http://www.acronymgeek.com/OATU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, OATU, http://www.acronymgeek.com/OATU (optional description here) (as of Feb. 15, 2012, 21:44). |
| AMA | OATU. Acronym Geek. February 15, 2012, 21:44. Available at: http://www.acronymgeek.com/OATU. Accessed February 15, 2012, 21:44. |