Steffes, P. G. (Paul Gregory), 1955-
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1989]
1989
Workshop on Analysis of Returned Comet Nucleus Samples (1989 : Milpitas, Calif.)
Houston, TX : Lunar and Planetary Institute ; [Springfield, Va. : National Technical Information Service, distributor, 1989]
1989
Sromovsky, Lawrence A.
[Washington, DC : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1994]
1994