APA (7th ed.) Citation

Krejci-Graf, K. (1936). Erdöl. Springer.

Chicago Style (17th ed.) Citation

Krejci-Graf, Karl. Erdöl. Berlin: Springer, 1936.

MLA (9th ed.) Citation

Krejci-Graf, Karl. Erdöl. Springer, 1936.

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