Asimov, Isaac  . <br/><br/>
Asimov`s chronology of science and discovery /  
by Isaac Asimov. 
 - London :   Grafton Books ,   1989. 
 - 707p. :   ills.,photos. ;   25cm .  
<br/><br/>Includes index 
<br/><br/><label>ISBN: </label>9780246136695  Rs. 588.55 
<br/><br/><label>Subjects--Index Terms: </label>SCIENCE-HISTORY INVENTIONS-HISTORY DISCOVERIES IN SCIENCE-HISTORY 
<br/><br/><label>Dewey Class. No.: </label>509  / ASI/A