@article{20443,
      recid = {20443},
      author = {Sadik, Marvin S.},
      title = {American portrait drawings, National Portrait Gallery /},
      publisher = {Published for the National Portrait Gallery by the  Smithsonian Instition Press,},
      address = {Washington :},
      pages = {214 p. :},
      year = {1980},
      note = {"An exhibition at the National Portrait Gallery, May  1-August 3, 1980."},
      url = {http://library.usi.edu/record/20443},
}