Wadsworth Atheneum, Barter, J. A., & Gaddis, E. R. (1987). American drawings and watercolors from the Wadsworth Atheneum: Judith A. Butler. With an introduction by Eugene R. Gaddis. Hudson Hills.
Chicago Style (17. basım) AtıfWadsworth Atheneum, Judith A. Barter, ve Eugene R. Gaddis. American Drawings and Watercolors from the Wadsworth Atheneum: Judith A. Butler. With an Introduction by Eugene R. Gaddis. New York: Hudson Hills, 1987.
MLA (8th ed.) AtıfWadsworth Atheneum, et al. American Drawings and Watercolors from the Wadsworth Atheneum: Judith A. Butler. With an Introduction by Eugene R. Gaddis. Hudson Hills, 1987.
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