TY  - BOOK
AU  - Chitty Mary Glen
TI  - NTIS:  concepts of the clearinghouse, 1945-1979
U1  - 2:5(X5)'N79<-N45, L9 
PY  - 1979///
CY  - Virginia
PB  - U.S.Department of Commerce USA      
KW  - LIBRARY SCIENCE
ER  -