Saur, K.G. <br/><br/>
World Guide to Special Libraries ( Voume-2 ) 
/ by K.G. Saur 
 - 5th ed. 
 - Munchen;  2001. 
 - v,1286p 
<br/><br/><label>ISBN: </label>3598222572 
<br/><br/><label>Dewey Class. No.: </label>026.03  / SAU/W