APA (7th ed.) Citation

Munari, B. (1966). The discovery of the circle. G. Wittenborn.

Chicago Style (17th ed.) Citation

Munari, Bruno. The Discovery of the Circle. New York: G. Wittenborn, 1966.

MLA (9th ed.) Citation

Munari, Bruno. The Discovery of the Circle. G. Wittenborn, 1966.