History of socialism : a comparative survey of socialism, communism, trade unionism, cooperation, utopianism, and other systems of reform and reconstruction / Harry W. Laidler. Laidler, Harry Wellington, 1884-1970. Socialism History. Communism History. Utopias. HX21 .L37 1968 335.109 LAH 1944 and 1949 ed. published under title:Social-economic movements. Includes index. Bibliography: p. 877-941. New York : Crowell, 1968. 1968. 1968 Text xx, 970 p. : eng