GEORGE Z. F. BEREDAY, WILLIAM W. BRICKMAN, and GERALD H. READ (Eds.), assisted by INA SCHLESINGER. The Changing Soviet School: The Compara tive Education Society Field Study in the U. S. S. R. Pp. xvii, 514. Boston: Houghton Mifflin Company, 1960. $4.50 clothbound; $3.50 paper-bound