Elsen, A. E. (1981). Purposes of art: An introduction to the history and appreciation of art (4th ed.). Holt, Rinehart and Winston.
Lua i Stíl Chicago (17ú heag.)Elsen, Albert E. Purposes of Art: An Introduction to the History and Appreciation of Art. 4th ed. New York: Holt, Rinehart and Winston, 1981.
Lua MLA (9ú heag.)Elsen, Albert E. Purposes of Art: An Introduction to the History and Appreciation of Art. 4th ed. Holt, Rinehart and Winston, 1981.
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