Cita APA (7th ed.)

Porzio Domenico & Messer Thomas. (1973). Understanding PICASSO. Newsweek Books.

Cita Chicago (17th ed.)

Porzio Domenico i Messer Thomas. Understanding PICASSO. New York: Newsweek Books, 1973.

Cita MLA (9th ed.)

Porzio Domenico i Messer Thomas. Understanding PICASSO. Newsweek Books, 1973.