McColvin, Lionel R. <br/><br/>
Public library services for children / 
by Lionel R. McColvin. 
 - 3rd ed. 
 - Paris :  Unesco,  1968. 
 - 103 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library service<br/>Public libraries--Services to children