India's Foreign Policy: Studies in Continuity and Change. Edited by Bimal Prasad. New Delhi: Vikas Publishing, 1979. 520 pp. Select Bibliography, Index. Rs. 150. - Janata's Foreign Policy. Edited by K. P. Misra. New Delhi: Vikas Publishing, 1979. 234 pp. Index. Rs. 60. - India's Nuclear Bomb. By Shyam Bhatia. New Delhi: Vikas Publishing, 1979. 156 pp. Note on Sources, Select Bibliography, Index. Rs. 45. (Distributed in U.S. by Advent Books, New York, N.Y.)