APA (7th ed.) Citation

Hartung, H., & Apollonio, U. (1972). Hans Hartung. H. N. Abrams.

Chicago Style (17th ed.) Citation

Hartung, Hans, and Umbro Apollonio. Hans Hartung. New York: H. N. Abrams, 1972.

MLA (9th ed.) Citation

Hartung, Hans, and Umbro Apollonio. Hans Hartung. H. N. Abrams, 1972.