Trivedy, R K <br/><br/>
Practical methods in ecology and environmental science 

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 - Karad  Environmental publications  1987 
 - 340p.: Illus.   
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<br/><br/><label>Subjects--Index Terms: </label>Enviroment  Environment  Ecology  Environmental movement  Environmental policy  Environmental production  pesticides  Ecology  Environment  Biology  Environmental sciences 
<br/><br/><label>Dewey Class. No.: </label>577.4.002