Engles, Frederick. <br/><br/>
Prakruthiyude vairuddyathmakatha / 
by Frederick Engles. 
 - Thiruvananthapuram :  Chintha books,  2012. 
 - 392 p. 
<br/><br/><label>ISBN: </label>8126208007 
<br/><br/><label>Subjects--Topical Terms: </label><br/>nature
<br/><br/><label>Dewey Class. No.: </label>335.4  / ENG.P