by W. R. Bratschun, A. J. Mountvala [and] A. G. PincusTechnology Utilization Office, National Aeronautics and Space Administration; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.]1971
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著者標目...untvala, A. J. Pincus, Alexis George United States. National Aeron...