[Committee to Frame a World Constitution]. “Preliminary Draft of a World Constitution. As Proposed and Signed by Robert M. Hutchins, G[iuseppe] A[ntonio] Borgese, Mortimer J. Adler, Stringfellow Barr, Albert Guérard, Harold A. Innis, Erich Kahler, Wilber G. Katz, Charles H. McIlwain, Robert Redfield, Rexford G[uy] Tugwell”. Chicago, IL: University of Chicago Press, 1948.