APA (7th ed.) Citation

Valentin, E. (1959). Mozart, a pictorial biography. The Viking Press.

Chicago Style (17th ed.) Citation

Valentin, Erich. Mozart, a Pictorial Biography. New York: The Viking Press, 1959.

MLA (9th ed.) Citation

Valentin, Erich. Mozart, a Pictorial Biography. The Viking Press, 1959.