General information and test procedures 

 - Hatfield  NRCD         1970 
<br/><br/> Contents : Section 1 : Microform readers (Amendment no. 1) (15p) 
<br/><br/><label>Standard No.: </label>4,989 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LIBRARY SCIENCE
<br/><br/><label>Dewey Class. No.: </label>20bM1495, L01.1