C 137.132 

C her n s , Jack J. -Avai1abi1ity and Use 
of officia1 Pub1ications ln Llbraries. 
Prep. bl uack J. Cherns. /Mit Tab./ _ 
(Paris:) General Information Programme and 
UNTSIST; United Nations Educationa1, 
Scientific and Cu1tuöa1 Organization 
1983. VIII, 132 S. 4