Bernal, J.D.. <br/><br/>
Science in history Volume 2 /  
by J.D.Bernal. 
 - 1st.Edn. /  
 - Middlesex :   Penguin Book Ltd ,   1961 
 - 374-689p ;  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science History
<br/><br/><label>Dewey Class. No.: </label>Av  / K9.2