APA Citatie

Pearl Richard M. (1955). How to know the minerals and rocks. New York: The new American Library.

Chicago Style citaat

Pearl Richard M. How to Know the Minerals and Rocks. New York: The new American Library, 1955.

MLA citatie

Pearl Richard M. How to Know the Minerals and Rocks. New York: The new American Library, 1955.

Let op: Deze citaties zijn niet altijd 100% accuraat.