1966 directory of national trade and professional associations of the United States 
/ Potomac Books, Inc. 
 - Washington:          Potomac Books, Inc.,      1966 
 - xiv, 122p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social science
<br/><br/><label>Universal Decimal Class. No.: </label>R 061.5(058.7)(73)  / K6