Davis, J. R. Ainsworth . <br/><br/>
Encyclopaedia of scientific developments inventions & discoveries/ 
J. R. Ainsworth Davis. 
 - New Delhi :   Bhavana books & prints,,  1996 
 - 207p. : (Vol.-V)  23 cm. 
<br/><br/><label>ISBN: </label>8186505156 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopaedia
<br/><br/><label>Dewey Class. No.: </label>509.03  / ENC 1996