American library directory  

 - 25th ed.  
 - New York:   R. R. Bowker Company,   1967 
 - xii, 1444p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Universal Decimal Class. No.: </label>D 026/027(058.7)  / K7