Encyclopaedia of Scientific Developments Inventions Discoveries: Vol.04 

 - New Delhi:  Bhavana Books,  1996. 
 - ix,73-235p.;  ill.;  22 cm 
 - Encyclopaedia of Scientific Developments Inventions Discoveries .
<br/><br/><label>ISBN: </label>81-86505-15-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedia<br/>Development
<br/><br/><label>Dewey Class. No.: </label>681.75  / ENC