Douglas, L. V. (1965). Teaching business subjects. Prentice-Hall, Inc.
Chicagoスタイル(17版)引用形式Douglas, Lloyd V. Teaching Business Subjects. Prentice-Hall, Inc, 1965.
MLA(8版)引用形式Douglas, Lloyd V. Teaching Business Subjects. Prentice-Hall, Inc, 1965.
警告: この引用は必ずしも正確ではありません.