APA (7th ed.) Citation

Dürer, A., Schilling, E., & Winkworth, E. B. S. (1949). Drawings and water colors. Harper.

Chicago Style (17th ed.) Citation

Dürer, Albrecht, Edmund Schilling, and Eveline Byam Shaw Winkworth. Drawings and Water Colors. New York: Harper, 1949.

MLA (9th ed.) Citation

Dürer, Albrecht, et al. Drawings and Water Colors. Harper, 1949.