Brock, R. (1949). The permabook of art masterpieces ([1st ed.].). Permabooks.
Chicago Style (17th ed.) CitationBrock, Ray. The Permabook of Art Masterpieces. [1st ed.]. New York: Permabooks, 1949.
Cita MLABrock, Ray. The Permabook of Art Masterpieces. [1st ed.]. Permabooks, 1949.
Atenció: Aquestes cites poden no estar 100% correctes.