Encyclopaedia of human knowledge / 
Edited by George W.Cox 
 - Delhi :  Caxton publications ,  1990 
 - 617 pages ;  Illustrations ,  22 cm. 
<br/><br/> Vol.1 
<br/><br/><label>ISBN: </label>8185066523 
<br/><br/><label>Dewey Class. No.: </label>032  / ENC N90E