Balchen, B. (1960). The Next Fifty Years of Flight. New York: The Viking.
シカゴスタイル引用形Balchen, Bernt. The Next Fifty Years of Flight. New York: The Viking, 1960.
MLA引用形式Balchen, Bernt. The Next Fifty Years of Flight. New York: The Viking, 1960.
警告: この引用は必ずしも正確ではありません.