Hemmings, Ray Fifty years of freedom : a study of the development of the ideas / A. S. Neill. - London: George Allen and Unwin, 1972. - xiii,218 p. : ill. ; 22 cm. - Unwin education books . Includes bibliographical references and index. ISBN: 0043710204 Subjects--Personal Names: Neill, Alexander Sutherland 1883-1973 Subjects--Topical Terms: Summerhill SchoolChild rearing Dewey Class. No.: 370.1092