APA (7th ed.) Citation

Riley, C. M. (1959). Our mineral resources: An elementary textbook in economic geology. Wiley [u.a.].

Chicago Style (17th ed.) Citation

Riley, Charles M. Our Mineral Resources: An Elementary Textbook in Economic Geology. New York [u.a.]: Wiley [u.a.], 1959.

MLA (9th ed.) Citation

Riley, Charles M. Our Mineral Resources: An Elementary Textbook in Economic Geology. Wiley [u.a.], 1959.