National union catalogue  [microform]. 

 - Andover, USA  Advanced Library Systems  1956 
 - 61 microfiches  11 x 15cm 
<br/><br/> UKM: 1982-. Advanced Library Systems, USA. RM1958.00  January 1983 - June 1987 
 = National union catalogue 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Catalogue, Union--Periodicals