"About Rembrandt Etchings.” Rembrandt Painting. Accessed May 10, 2018. http://www.rembrandtpainting.net/about_rembrandt’s_etchings.htm.
Amon Carter Museum. Inspiring Visions. Accessed May 10, 2018. http://www.cartermuseum.org/Inspiring_Visions/Moran/moran_art.html.
Art Gallery of New South Wales. Art Gallery NSW. Accessed May 10, 2018. https://www.artgallery.nsw.gov.au/collection/works/8131/?
Carl, Klaus H. German Painting. Parkstone International, 2015. Accessed May 10, 2018. https://books.google.com/books
Comegna, Anthony. “Art as Ideas: Thomas Cole’s The Course of Empire.” LIBERTARIANISM.org. Last modified March 25, 2016. Accessed May 10, 2018. https://www.libertarianism.org/columns/art-ideas-thomas-coles-course-empire.
Jonathan5485. “Dedham Vale and The Vale of Dedham by John Constable.” My Daily Art Display (blog). Entry posted November 6, 2011. Accessed May 10, 2018. https://mydailyartdisplay.wordpress.com/2011/11/06/dedham-vale-and-the-vale-of-dedham-by-john-constable/.
Kleiner, Fred S. Gardner’s Art through the Ages: The Western Perspective, Volume 2. Cengage Learning, 2009. https://books.google.com/books
Kuretsky, Susan Donahue. “Creation in Rembrandt’s ‘Landscape with Three Trees.’” Artibus et Historiae 15, no. 30 (1994): 157-91. http://www.jstor.org/stable/1483479.
Masterworks Fine Art. “Rembrandt Etchings.” Masterworks Fine Art. Accessed May 10, 2018. https://www.masterworksfineart.com/artists/rembrandt.
The National Gallery. “Claude-Joseph Vernet.” nationalgallery.org.uk. Accessed May 10, 2018. https://www.nationalgallery.org.uk/artists/claude-joseph-vernet.
National Gallery of Art. “Green River Cliffs, Wyoming.” nga.gov. Accessed May 10, 2018. https://www.nga.gov/collection/art-object-page.82648.html.
The National Museum of Western Art. “Summer Evening, Landscape in Italy.” http://collection.nmwa.go.jp/. Accessed May 10, 2018. http://collection.nmwa.go.jp/en/P.1988-0002.html.
Orenstein, Nadine. “Rembrandt van Rijn (1606–1669): Prints.” Met Museum. Last modified October 2004. Accessed May 10, 2018. https://www.metmuseum.org/toah/hd/rembp/hd_rembp.htm.
Stoneman, Richard. A Luminous Land: Artists Discover Greece. Getty Publications, 1998. Accessed May 10, 2018. https://books.google.com/books
Theodore Gegoux. “Claude-Joseph Vernet (1714-1789).” gegoux.com. http://www.gegoux.com/JosephVernet/.
van de Wetering, Ernst. “Rembrandt van Rijn.” britannica.com. Last modified March 14, 2018. Accessed May 10, 2018. https://www.britannica.com/biography/Rembrandt-van-Rijn.