APA Citation

Pearl, R. M. How to know the minerals and rocks. McGraw-hill book company, inc.

Chicago Style Citation

Pearl, Richard M. How to Know the Minerals and Rocks. McGraw-hill book company, inc.

MLA Citation

Pearl, Richard M. How to Know the Minerals and Rocks. McGraw-hill book company, inc.

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