Osborne, H. (1970). The art of appreciation. Oxford University Press.
Cita Chicago (17th ed.)Osborne, Harold. The Art of Appreciation. London ; New York [u.a.]: Oxford University Press, 1970.
Cita MLA (8th ed.)Osborne, Harold. The Art of Appreciation. Oxford University Press, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.