Christian Wolff, quoted in Kostelanetz, Richard (editor) and Joseph Darby (editor). Classic Essays on Twentieth-Century Music. ISBN 0028645812.
Christian Wolff, quoted in Kostelanetz, Richard (editor) and Joseph Darby (editor). Classic Essays on Twentieth-Century Music . ISBN 0028645812.
http://www.moviequotedb.com/movies/songwriter/quote_77859.html