APA Citation

Pearl, R. M. (1955). How to know the minerals and rocks. McGraw-Hill Book Co.

Chicago Style Citation

Pearl, Richard M. How to Know the Minerals and Rocks. McGraw-Hill Book Co, 1955.

MLA Citation

Pearl, Richard M. How to Know the Minerals and Rocks. McGraw-Hill Book Co, 1955.

Warning: These citations may not always be 100% accurate.