Theil, Andrea C. "Roy Lichtenstein's Sketchbooks." In Roy Lichtenstein: Drawing First. 50 Years of Works on Paper, edited by Danilo Eccher, pp. 233–248. Milan: Skira Editore, 2015.
Book

Theil 2015

Theil, Andrea C. "Roy Lichtenstein's Sketchbooks." In Roy Lichtenstein: Drawing First. 50 Years of Works on Paper, edited by Danilo Eccher, pp. 233–248. Milan: Skira Editore, 2015.