APA引文

Balchen, B. (1960). The Next Fifty Years of Flight. New York: The Viking.

Trích dẫn kiểu Chicago

Balchen, Bernt. The Next Fifty Years of Flight. New York: The Viking, 1960.

MLA引文

Balchen, Bernt. The Next Fifty Years of Flight. New York: The Viking, 1960.