APA (7th ed.) Citation

Kirchner, E. L., & Ketterer, R. N. (1991). Drawings and pastels. Alpine Fine Arts Collection.

Chicago Style (17th ed.) Citation

Kirchner, Ernst Ludwig, and Roman Norbert Ketterer. Drawings and Pastels. London: Alpine Fine Arts Collection, 1991.

MLA (9th ed.) Citation

Kirchner, Ernst Ludwig, and Roman Norbert Ketterer. Drawings and Pastels. Alpine Fine Arts Collection, 1991.

Warning: These citations may not always be 100% accurate.