Bibliography
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Wendy Beckett and Patricia Wright. Sister Wendy’s 1000 Masterpieces. London, UK: Dorling Kindersley Limited, 1999.
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Helen Gardner, Fred S. Kleiner, and Christin J. Mamiya. Gardner’s Art Through the Ages. 12th ed. Belmont, CA, USA: Thomson Wadsworth, 2005.
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Adam Greenhalgh. American Paintings, 1900-1945. Washington, DC, USA: National Gallery of Art, 2016.
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“Ground Swell.” National Gallery of Art Online Collection. Retrieved March 31, 2024.
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“Nighthawks.” Art Institute of Chicago Online Collection. Retrieved April 8, 2024.