House documents, 81st Congress. 631. Audit report on Inter-American Affairs corporations, letters from comptroller general transmitting report on audit of Institute of Inter-American Affairs for 2 years ended June 30, 1949, together with Prencinradio, Inc., and Institute of Inter-American Transportation for periods from July 1, 1947, to date of final liquidation, May 10 and Aug. 20, 1949.