Duke, G. R. (1992). Air traffic control / Graham Duke (4th ed.). Ian Allan.
Chicago Style (17th ed.) CitationDuke, G. R. Air Traffic Control / Graham Duke. 4th ed. Shepperton: Ian Allan, 1992.
MLA (9th ed.) CitationDuke, G. R. Air Traffic Control / Graham Duke. 4th ed. Ian Allan, 1992.
Warning: These citations may not always be 100% accurate.