Grigorye, V <br/><br/>
Prakrithiyude Balangal 

 - Thiruvananthapuram  State Institute of Languages  1975 
 - 245p. 
<br/><br/><label>Subjects--Uniform Titles: </label>--General Stack
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics--Natural Science--Generalia
<br/><br/><label>Dewey Class. No.: </label>531.6  / GRI-P