Economic Development for Eastern Europe: Proceedings of a Conference Held by the International Economic Association. Edited by M. C. Kaser. London: Published by Macmillan; St. Martin's Press, New York, distributor, 1968. Pp. xii, 330. $12.75. - Economic Reforms in Eastern Europe. By Michael Gamarnikow. Detroit: Wayne State University Press, 1968. Pp. 208. $8.95.