APA citiranje

Pearl Richard M. (1955). How to know the minerals and rocks. New York: The new American Library.

Trích dẫn kiểu Chicago

Pearl Richard M. How to Know the Minerals and Rocks. New York: The new American Library, 1955.

MLA citiranje

Pearl Richard M. How to Know the Minerals and Rocks. New York: The new American Library, 1955.

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