McColvin, Lionel Roy,    1896- <br/><br/>
Public library services for children /    
L. Roy McColvin. 
 - Paris :   UNESCO ,   1957. 
 - 103p. :    ill. ;    21 cm. 
 - UNESCO public library manuals ;   9. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libraries, Children's.--------