Scientific and Technical Information Division, National Aeronautics and Space Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]1969.<NC161-54>
Prepared by James M. Grimwood and Barton C. Hacker with Peter J. VorzimmerScientific and Technical Information Division, Office of Technology Utilization, National Aeronautics and Space Administration : [For sale by the Supt. of Docs., U.S. G.P.O.]1969