. . . . . . . . "Exhibition catalogs"@en . . "Contemporary drawings : Philadelphia I : [exhibition] The Pennsylvania Academy of the Fine Arts, September 15-November 26, 1978"@en . . . "Contemporary drawings : Philadelphia I : [exhibition held] The Pennsylvania Academy of the Fine Arts, September 15-November 26, 1978"@en . . . "Contemporary drawings : Philadelphia I : the Pennsylvania Academy of the Fine Arts, September 15-November 26, 1978 : [Contemporary drawings : Philadelphia II : the Philadelphia Museum of Art, March 24-May 20, 1979] : a joint exhibition"@en . . . . . . . . "1900 - 1999" . .