Cita APA (7th ed.)

Wollheim, R. (1975). Art and its objects. Penguin Books.

Cita Chicago (17th ed.)

Wollheim, Richard. Art and Its Objects. Harmondsworth, Middlesex: Penguin Books, 1975.

Cita MLA (9th ed.)

Wollheim, Richard. Art and Its Objects. Penguin Books, 1975.