Mathur, L.M. <br/><br/>
Environmental science and nature and biological resources conservation manual 
by L.M. Mathur 
 - Delhi  International Educational Research Centre  1992 
 - 113p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological diversity - India<br/>Natural resources - India<br/>Environmental sciences - India
<br/><br/><label>Dewey Class. No.: </label>O91x54 M426