[Blacksburg, Va.] : Virginia Polytechnic Institute and State University, Dept. of Aerospace and Ocean Engineering ; [Washington, D.C. : National Aeronautics and Space Administration, 1990]
1990
[Blacksburg, Va.] : Virginia Polytechnic Institute and State University, Dept. of Aerospace and Ocean Engineering ; [Washington, D.C. : National Aeronautics and Space Administration, 1990]
1990