Mahar Mary Helen <br/><br/>
School library as a materials center 
U.S. Department of Health, Education, and Welfare 
 - Washington, USA  U.S. Government Printing Office   1963 
 - 83p. 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libraries