Environmental studies: text cum work book 2010 1st Std 
Karnataka Text book Society 
 - Bangalore  Karnataka Text Book Society  2010 
 - ii,82 p.:ill. ; 21cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental studies
<br/><br/><label>Dewey Class. No.: </label>333.707 GOV