Negi, Balbir Singh <br/><br/>
Geography of resources 

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 - Kedar Nath Ram Nath Publishers, Meerut  1980 
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology-- Biodiversity-- Conservation
<br/><br/><label>Dewey Class. No.: </label>577  NEG-G