Pearl, R. M. (1955). How to Know the minerals and rocks. New America Library.
Chicagoスタイル(17版)引用形式Pearl, Richard M. How to Know the Minerals and Rocks. New York: New America Library, 1955.
MLA(9版)引用形式Pearl, Richard M. How to Know the Minerals and Rocks. New America Library, 1955.
警告: この引用は必ずしも正確ではありません.