Pearl, R. M. (1955). How to Know the minerals and rocks. New America Library.
Chicago Style (17. basım) AtıfPearl, Richard M. How to Know the Minerals and Rocks. New York: New America Library, 1955.
MLA (9th ed.) AtıfPearl, Richard M. How to Know the Minerals and Rocks. New America Library, 1955.
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