New Delhi: Munshiram Manoharlal Publishers, 1981. hardcover. With a few b/w illustrations and diagrams. 278pp. 8vo, light blue cloth, d.w. a bit edgeworn and faded. New Delhi: Munshiram Manoharlal Publishers, (1981). Bumped edges and spine, still a good copy in a very good dust wrapper. very good / good.