| APA | ATSO. (2012, February 14). In Acronym Geek. Retrieved 22:43, February 14, 2012, from http://www.acronymgeek.com/ATSO |
| MLA | "ATSO." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/ATSO>. |
| MHRA | 'ATSO', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/ATSO> [accessed 14 February 2012] |
| Chicago | "ATSO", http://www.acronymgeek.com/ATSO (accessed February 14, 2012). |
| CBE/CSE | ATSO [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/ATSO. |
| Bluebook | ATSO, http://www.acronymgeek.com/ATSO (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ATSO, http://www.acronymgeek.com/ATSO (optional description here) (as of Feb. 14, 2012, 22:43). |
| AMA | ATSO. Acronym Geek. February 14, 2012, 22:43. Available at: http://www.acronymgeek.com/ATSO. Accessed February 14, 2012, 22:43. |