Cultural Patterns and Technical Change 

 - New York :  Mentor Books,   1961. 
 - 352p.;  19cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>W.D. Fernando Collection<br/>E.L Wijemanna Collection<br/>Biochemistry
<br/><br/><label>Dewey Class. No.: </label>572.7  / CUL