APA (7th ed.) Citation

Kohner, H., Kohner, W., & Kohner, F. (1984). Hanna and Walter: A love story. Random House.

Chicago Style (17th ed.) Citation

Kohner, Hanna, Walter Kohner, and Frederick Kohner. Hanna and Walter: A Love Story. New York: Random House, 1984.

MLA (9th ed.) Citation

Kohner, Hanna, et al. Hanna and Walter: A Love Story. Random House, 1984.