The Vincent Melzac Collection, Forward by Walter Hopps, Introduction by Ellen Gross Landau, Retrospective Notes on the Washington Color School by Barbara Rose, Copyright 1971 The Corcoran Gallery of Art, Washington, D.C.: printed by Garamond/Pridemark Press, Baltimore, MD LCCC#75-153646
In 1966, de Looper had his first solo exhibition at the Jefferson Place Gallery in Washington, DC.
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