| APA | ATRA. (2012, February 15). In Acronym Geek. Retrieved 20:42, February 15, 2012, from http://www.acronymgeek.com/ATRA |
| MLA | "ATRA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ATRA>. |
| MHRA | 'ATRA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ATRA> [accessed 15 February 2012] |
| Chicago | "ATRA", http://www.acronymgeek.com/ATRA (accessed February 15, 2012). |
| CBE/CSE | ATRA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ATRA. |
| Bluebook | ATRA, http://www.acronymgeek.com/ATRA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ATRA, http://www.acronymgeek.com/ATRA (optional description here) (as of Feb. 15, 2012, 20:42). |
| AMA | ATRA. Acronym Geek. February 15, 2012, 20:42. Available at: http://www.acronymgeek.com/ATRA. Accessed February 15, 2012, 20:42. |