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  1. 1
    Essays on environmental and reosurces: some regional issues
    由 Prithvish Nag
    出版 1991
    Printed Book
  2. 2
    Basic principles of Environment and resources
    由 Ahluwalia, S K
    出版 2006
    Printed Book
  3. 3
    Environmental awareness and education /
    出版 2008
    Printed Book
  4. 4
    Management of natural and environmental resources : economics and potential strategies
    由 Dayanandan, R.
    出版 2011
    Printed Book
  5. 5
    Resource Economics /
    出版 2010
    Printed Book
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