Environment knowledge quizz  compilation of questions and answers 

 - Battaramulla  Central Environmental Authority  2013 
 - xiv, 86 p.  Colour illustration 
<br/><br/><label>ISBN: </label>9789559012481 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BOOKS BOX B1027<br/>ENVIRONMENT<br/>ENVIRONMENTAL EDUCATION<br/>ENVIRONMENTAL KNOWLEDGE<br/>IQ
<br/><br/><label>Dewey Class. No.: </label>B1027  / LDC