Before Photography : : Painting and the Invention of Photography (exhibition New York, MOMA, 09.05.1981 - 05.07.1981 ; Omaha, Joslyn Art Museum, 12.09.1981 - 08-11-1981 ; L.A., Frederick S. Wight Art Gallery, 04.01.1982 - 21.02.1982 ; Chicago, Art Institute, 15.03.1982 - 09.05.1982). boek