INDEX Ruth Crawford: crubib George Crumb: Books- specific to the subject/topic crucmp George Crumb: Compositions crudis George Crumb: Dissertations and Theses crudsc George Crumb: Discographies crugen George Crumb: Reference-books cruhst George Crumb: Histories and/or Theories of music cruper George Crumb: Periodical articles cruupb George Crumb: Unpublished papers