Pepper, S. C. (1949). Principles of art appreciation. New York: Harcourt, Brace and Company.
Παραπομπή Chicago StylePepper, Stephen Coburn. Principles of Art Appreciation. New York: Harcourt, Brace and Company, 1949.
Παραπομπή MLAPepper, Stephen Coburn. Principles of Art Appreciation. New York: Harcourt, Brace and Company, 1949.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.