APA (7th ed.) Citation

Duncan, W. G. (1956). A study toward a system of classification of unprepared landing areas. AGARD.

Chicago Style (17th ed.) Citation

Duncan, W. Gordon. A Study Toward a System of Classification of Unprepared Landing Areas. Neuilly sur Seine: AGARD, 1956.

MLA (9th ed.) Citation

Duncan, W. Gordon. A Study Toward a System of Classification of Unprepared Landing Areas. AGARD, 1956.

Warning: These citations may not always be 100% accurate.