| APA | Air Traffic Services Operator (ATSO). (2012, February 13). In Acronym Geek. Retrieved 20:47, February 13, 2012, from http://www.acronymgeek.com/ATSO/Air_Traffic_Services_Operator |
| MLA | "Air Traffic Services Operator (ATSO)." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/ATSO/Air_Traffic_Services_Operator>. |
| MHRA | 'Air Traffic Services Operator (ATSO)', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/ATSO/Air_Traffic_Services_Operator> [accessed 13 February 2012] |
| Chicago | "Air Traffic Services Operator (ATSO)", http://www.acronymgeek.com/ATSO/Air_Traffic_Services_Operator (accessed February 13, 2012). |
| CBE/CSE | Air Traffic Services Operator (ATSO) [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/ATSO/Air_Traffic_Services_Operator. |
| Bluebook | Air Traffic Services Operator (ATSO), http://www.acronymgeek.com/ATSO/Air_Traffic_Services_Operator (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, Air Traffic Services Operator (ATSO), http://www.acronymgeek.com/ATSO/Air_Traffic_Services_Operator (optional description here) (as of Feb. 13, 2012, 20:47). |
| AMA | Air Traffic Services Operator (ATSO). Acronym Geek. February 13, 2012, 20:47. Available at: http://www.acronymgeek.com/ATSO/Air_Traffic_Services_Operator. Accessed February 13, 2012, 20:47. |