encyclopaedia of scientifie developments inventions and discoveries./ 
edited by J. R. Ainsworth Davis. 
 - New Delhi :  Bhavana books & prints,,  1996 
 - 187 p.: (Vol.-II)  23cm. 
<br/><br/><label>ISBN: </label>8186505156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>enEcyclopaedia
<br/><br/><label>Dewey Class. No.: </label>509.03  / ENC 1996