Cita APA (7th ed.)
Wilmerding, J. (1976). American Art. Penguin Books.
Cita Chicago (17th ed.)
Wilmerding, John. American Art. Harmondsworth: Penguin Books, 1976.
Cita MLA (9th ed.)
Wilmerding, John. American Art. Penguin Books, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.