European sources of scientific and technical information Guide to European sources of technical information Harvey, Anthony P. Pernet, Ann. text directory enk Harlow, Essex Detroit, Mich Longman Distributed by Gale Research Co. 1981 5th ed. monographic eng
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504 p. ; 25 cm. editors Anthony P. Harvey and Ann Pernet. Rev. ed. of: Guide to European sources of technical information / editor Ann Pernet. 4th ed. 1976. Includes indexes. Technology Information services Directories Science Information services Directories Information services Europe Directories 607 HAE 1981 Reference on research 0582901081 82199666 DLC 821115 20181210003139.0