APA (7th ed.) Citation

Klugmann, W., Schröder, W., & Westendorf, H. (1960). Hafen Hamburg. Okis.

Chicago Style (17th ed.) Citation

Klugmann, Werner, Werner Schröder, and Harm Westendorf. Hafen Hamburg. Hamburg: Okis, 1960.

MLA (9th ed.) Citation

Klugmann, Werner, et al. Hafen Hamburg. Okis, 1960.