APA (7. basım) Alıntı

Knowlton, H. (1941). Air transportation in the United States: Its growth as a business. The University of Chicago press.

Chicago Style (17. basım) Atıf

Knowlton, Hugh. Air Transportation in the United States: Its Growth as a Business. Chicago, Ill.: The University of Chicago press, 1941.

MLA (8th ed.) Atıf

Knowlton, Hugh. Air Transportation in the United States: Its Growth as a Business. The University of Chicago press, 1941.