Cita APA (7a ed.)

Spruce, E., & Leeper, J. P. (1959). Everett Spruce. American Federation of Arts.

Cita Chicago Style (17a ed.)

Spruce, Everett, y John Palmer Leeper. Everett Spruce. New York: American Federation of Arts, 1959.

Cita MLA (9a ed.)

Spruce, Everett, y John Palmer Leeper. Everett Spruce. American Federation of Arts, 1959.