Cita APA (7th ed.)

Cooper, H. A. (1986). Winslow Homer Watercolors. Yale University Press.

Cita Chicago (17th ed.)

Cooper, Helen A. Winslow Homer Watercolors. New Haven , London: Yale University Press, 1986.

Cita MLA (8th ed.)

Cooper, Helen A. Winslow Homer Watercolors. Yale University Press, 1986.