McColvin, Lionell R.  1896- <br/><br/>
Public library services for children 
Lionell R.McColvin 
 - Paris  Unesco  1957 
 - 103p. ill. 21cm. 
 - UNESCO Public library manuals  9 .
<br/><br/><label>LCCN: </label>57-4232 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libraries, Children's