Gurley, John G. Challengers to capitalism; Marx, Lenin, and Mao / John G. Gurley - San Francisco : San Francisco Book Co. , 1976 - v.p. il. ; 24 cm. - Portable Stanford Series . Includes bibliographical references and index. Subjects--Topical Terms: Marxismcapitalismsocialismrevolution Dewey Class. No.: 335.35 / GUR