Encyclopedia  Of International Organizations /      English . 
Linda Irvin ( Edit). 
 - 25 Th ed. 
 - Detroit :  Gale Research Inc ,   1991. 
 - xiv,1893p.:  ill.;  29cm. 
<br/><br/><label>ISBN: </label>0810374080 
<br/><br/><label>Dewey Class. No.: </label>061(03)  / ENC