APA (7th ed.) Citation

Ahlfeld, F. (1939). Die Bodenschätze Boliviens. Borntraeger.

Chicago Style (17th ed.) Citation

Ahlfeld, Friedrich. Die Bodenschätze Boliviens. Berlin: Borntraeger, 1939.

MLA (9th ed.) Citation

Ahlfeld, Friedrich. Die Bodenschätze Boliviens. Borntraeger, 1939.

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