Adreßbücher:Kartensammlungen B 127. 9998 I~ 

World-directory map-collections.-World Directory 
of Map Collections. Compiled by the 
Geography and Map Libraries Sub Section. Ed. 
by Walter W. Ristow.-Mün8hen: Verl. Dokumentation 
1976. 326 S. 8 
(IFLA-publications. 8.)