On the Creation of a Just World Order: Preferred Worlds for the 1990’s. Edited by Saul H. Mendlovitz. New York: The Free Press, 1975. Pp. xviii, 302. Index. $9.95. - Footsteps Into the Future: Diagnosis of the Present World and a Design for an Alternative. By Rajni Kothari. New York: The Free Press, 1975. Pp. xxiii, 173. Index. $8.95. - A Study of Future Worlds. By Richard A. Falk. New York: The Free Press, 1975. Pp. xxxiv, 506. Index. $15.00.