N Krishna Pillai,  <br/><br/>
Bala Belam 

 - Thiruvananthapuram  Kamalalya Printing Works  1978 
<br/><br/><label>Subjects--Uniform Titles: </label>--GENERAL STACK
<br/><br/><label>Subjects--Topical Terms: </label><br/>NATURAL SCIENCE& MATHEMATICS--GEOLOGY,HYDROLOGY & METEOROLOGYGeneralia--EARTH SCIENCE
<br/><br/><label>Dewey Class. No.: </label>551.38  / NKR-B