Sources of areographic coordinates, 1909-1954
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Bibliographic Information
Sources of areographic coordinates, 1909-1954
Distributed by U.S. Dept. of Commerce, Office of Technical Services, [1961]
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"Prepared for Air Force Cambridge Research Laboratories, Air Force Research Division, Air Research and Development Command, United States Air Force"
"AFCRL 257"
"Scientific report no. 2, ARDC contract AF19(604)-7461"
"This report is a reproduction of an original document resulting from Government sponsored reseach ... "--Previous page of t.p.