U.S. Government research and development reports index
U.S. Government research and development reports index.
[Springfield, Va. : National Technical Information Service, 1969-1971].
4 v. : ill. ; 27 cm.
Vol. 68 (Jan./Dec. 1968)-v. 70 (Jan./Dec. 1970).
U.S. Government research & development reports index
Cumulated vols. are issued in sections: subject, corporate & personal author, etc.
Title from cover.
Vols. for 1968-69 issued by U.S. Clearinghouse for Federal Scientific and Technical Information; 1970, by U.S. Dept. of Commerce, National Technical Information Service.
U.S. Government research and development reports
US Government Document
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