TY  - BOOK
AU  - Withers,F.N.
TI  - Standards for library service : an international survey / by F. N. Withers
SN  - 9231011774
AV  - C/Z678.85/W57 
PY  - 1974///
CY  - Paris
PB  - UNESCO
KW  - Bibliotecas - Normas
N1  - Monografía
ER  -