TY  - BOOK
AU  - Willemin,Silvere
TI  - Technique of union catalogues: a practical guide 
PY  - 1966///
CY  - Paris
PB  - Unesco
KW  - Catalogs, Union
N1  - Reprinted from the January-February 1966 number of the Unesco bulletin for libraries. - tp verso
ER  -