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