APA citiranje

Whitney, F. L. (1950). The elements of research. New York: Prentice-Hall.

Trích dẫn kiểu Chicago

Whitney, Frederick Lamson. The Elements of Research. New York: Prentice-Hall, 1950.

MLA citiranje

Whitney, Frederick Lamson. The Elements of Research. New York: Prentice-Hall, 1950.

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