APA (7th ed.) Citation

Strittmatter, E., Jack, & Mitchell, R. (1966). Ole bienkopp. Seven Seas Book.

Chicago Style (17th ed.) Citation

Strittmatter, Erwin, Jack, and Renate Mitchell. Ole Bienkopp. Berlin: Seven Seas Book, 1966.

MLA (9th ed.) Citation

Strittmatter, Erwin, et al. Ole Bienkopp. Seven Seas Book, 1966.