direqtory of special libraries and information centers AM  94/1 

 - 17. ed. 
 -  Gale Research, Incorporated  1994, 1994  Gale Research, Incorporated 
 - XVI, 1196 S. 
<br/><br/><label>ISBN: </label>0810380188 (vol.1 part.1) 081038017X 0810380196 (vol.1 part.2) 
<br/><br/><label>Universal Decimal Class. No.: </label>027.5+002.6