TY  - SER
TI  - National union catalogue
PY  - 1956///
CY  - Andover, USA
PB  - Advanced Library Systems
KW  - Catalogue, Union
KW  - Periodicals
N1  - UKM: 1982-. Advanced Library Systems, USA. RM1958.00; January 1983 - June 1987
ER  -