Thomas, D. (1980). Crescent color guide to the impressionists. Crescent Books.
Lua i Stíl Chicago (17ú heag.)Thomas, Denis. Crescent Color Guide to the Impressionists. New York: Crescent Books, 1980.
Lua MLA (9ú heag.)Thomas, Denis. Crescent Color Guide to the Impressionists. Crescent Books, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.