Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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