Cita APA (7a ed.)

Guptill, A. L., & Yewell, J. F. (1946). Color: In sketchin and rendering (4º ed.). Reinhol.

Cita Chicago Style (17a ed.)

Guptill, Arthur L., y J. Floyd Yewell. Color: In Sketchin and Rendering. 4º ed. New York: Reinhol, 1946.

Cita MLA (9a ed.)

Guptill, Arthur L., y J. Floyd Yewell. Color: In Sketchin and Rendering. 4º ed. Reinhol, 1946.