Cita APA

Ries, H. (1930). Elementary economic geology. J. Wiley & sons, inc. Chapman & Hall, limited.

Citación estilo Chicago

Ries, Heinrich. Elementary Economic Geology. New York, London: J. Wiley & sons, inc. Chapman & Hall, limited, 1930.

Cita MLA

Ries, Heinrich. Elementary Economic Geology. J. Wiley & sons, inc. Chapman & Hall, limited, 1930.

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