Astronautical research, 1971: Proceedings of the 22d congress of the International Astronautical Federation, Brussels, 20-25 Sept. 1971 - Dordrecht: D. Reidel Publishing Company, 1973 - ix, 586p. - Astrophysics and space science library . ISBN: 9789027703064 Subjects--Topical Terms: Science Subjects--Index Terms: Astrophysics Universal Decimal Class. No.: 629.78:539.122(082.2) / L3