APA (7th ed.) Citation

Strelow, H., & Ratjen, H. (1964). Hermann Ratjen: [May 21st to June 3rd 1964, Galerie Internationale, New York] / [Text: Hans Strelow].

Chicago Style (17th ed.) Citation

Strelow, Hans, and Hermann Ratjen. Hermann Ratjen: [May 21st to June 3rd 1964, Galerie Internationale, New York] / [Text: Hans Strelow]. New York, 1964.

MLA (8th ed.) Citation

Strelow, Hans, and Hermann Ratjen. Hermann Ratjen: [May 21st to June 3rd 1964, Galerie Internationale, New York] / [Text: Hans Strelow]. 1964.