by Symposium on Space Commercialization: Roles of Developing Countries (1989 : Nashville, Tenn.) | Shahrokhi, F | Hazelrigg, George A | Bayuzick, R. J | ProQuest (Firm).
by Hazelrigg, George A | Reynolds, Joseph M | National Science Foundation (U.S.) | American Institute of Aeronautics and Astronautics | ProQuest (Firm).