International research centers directory 1994-95 

 - 7th ed. 
 - London:      Gale Research Inc.,     1993 
 - 1585p. 
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Universal Decimal Class. No.: </label>R 061.6(100)(058.7)  / N3