APA (7th ed.) Citation

(1989). September 1939. Vandenhoeck & Ruprecht.

Chicago Style (17th ed.) Citation

September 1939. Vandenhoeck & Ruprecht, 1989.

MLA (8th ed.) Citation

September 1939. Vandenhoeck & Ruprecht, 1989.

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