Cherry, Gordon E., ed. Shaping an Urban World: Planning in the Twentieth Century. New York: St. Martin's Press, 1980. Pp. xii, 259. Figures, maps, illustrations. $27.50 (U.S.) / Kain, Roger, ed., Planning for Conservation: An International Perspective. New York: St. Martin's Press, 1981. Pp. xii, 292. Tables, figures, maps, illustrations. $30.00 (U.S.) - Smith, P. (Urban History Review / Revue d'histoire urbaine, 1982)