Kopman, B. D. (1959). Benjamin Kopman - paintings and gouaches: May 6-June 13, 1959 / World House Galleries. World House Galleries.
Lua i Stíl Chicago (17ú heag.)Kopman, Benjamin D. Benjamin Kopman - Paintings and Gouaches: May 6-June 13, 1959 / World House Galleries. New York: World House Galleries, 1959.
Lua MLA (8ú heag.)Kopman, Benjamin D. Benjamin Kopman - Paintings and Gouaches: May 6-June 13, 1959 / World House Galleries. World House Galleries, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.