Adreßbücher:Bibliothekswesen: C 132.856!~. 
Spezialbibliotheken IW 

Directory libraries special information-centers.-
Directory of special 1ibraries and 
information centers. A guide to special 
libraries, research libraries.•.Ed.by Margaret 
L. Young, Harold C. Young. !Mit suppl! 
5th Ed. Vol.1.2.-Detroit,Michigan:Gale 
Research Comp.,Book Tower (1979). 4° 

1. United States and Canada. XVII, 1279 S. 
2. Geographie and personnel index.IX,715 s. 
/3.!New 
special libraries.A periodic supplement 
to the 5th Ed. !Loseblattausg.!