APA (7th ed.) Citation

Ruedemann, R., & Balk, R. (1939). Geology of North America. Verlag von Gebruder Borntraeger.

Chicago Style (17th ed.) Citation

Ruedemann, Rudolph, and Robert Balk. Geology of North America. Berlin: Verlag von Gebruder Borntraeger, 1939.

MLA (9th ed.) Citation

Ruedemann, Rudolph, and Robert Balk. Geology of North America. Verlag von Gebruder Borntraeger, 1939.

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