Comparative economic systems / William N. Loucks [and] William G. Whitney. Loucks, William N. (William Negele), 1899- Whitney, William G., jt. aut. Comparative economics. HD82 .L67 1969 330.15 LOC Includes bibliographical references and index. New York : Harper & Row, 1969. 1969. 1969 Text xiii, 582 p. eng