| 1 |
v. 4
International bibliography of specialized dictionaries = Fachwörterbücher und Lexika, ein internationales Verzeichnis / [edited by Helga Lengenfelder]
(U.S.),(G.W.). - 6th ed. - München ; New York : K.G. Saur. - Detroit, Mich. : Distributed by Gale Research , 1979
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| 2 |
v. 8
World guide to libraries / [editor, Willemina van der Meer]
: set,v. 1,v. 2. - 14th ed. - München ; New York : K.G. Saur , 1999
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| 3 |
v.8
World guide to libraries = Internationales Bibliotheks-Handbuch
6th ed. / [edited by Helga Lengenfelder] ; [assistant editors, Gertrud Conrad-Bergweiler, Ingelore Schmid-Dankward]. - München ; London : Saur , 1983
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| 4 |
v. 17 = Bd. 17
World guide to special libraries / [edited by Helga Lengenfelder] = Internationales Handbuch der Spezialbibliotheken / [herausgegeben von Helga Lengenfelder]
1st ed. - München ; New York : K.G. Saur , 1983
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