Selections from the Drawing Collection of Mr. and Mrs. Julius S. Held (Loan exhibition Binghamton, University Art Gallery, 05.01 - 28.01.1970 ; Williamstown-Massachusetts, Williams College Museum of Art, 05.02 - 26.02.1970 ; Houston-Texas, The Museum of Fine Arts, 11.03 - 19.04.1970 ; ...). boek