Bernal, J. D. <br/><br/>
Sastram charitrattil 

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 - Thrissur  Kerala  Sastra Sahitya Parishad  2007 
 - 1529p.   
<br/><br/>  4vol set. 
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<br/><br/><label>Subjects--Index Terms: </label>History of science  Science in the ancient world  Scientific revolution  Science and Industry  Social science- History 
<br/><br/><label>Dewey Class. No.: </label>6:301.18(091)