TY  - SER
AU  - Bettembourg,I..
TI  - Unesco bulletin for libraries (1971) / 
U1  - 020.621 
PY  - 1971///
CY  - Paris : 
PB  - The United Nations Educational Scientific and Cultural Organization , 
KW  - LIBRARY AND INFORMATION SCIENCE
N1  - Library has : V.25, no. 1-6,1971; NULL
ER  -