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  1. 1

    Policy and practice in the management of tropical watersheds מאת Pereira, H. C.

    יצא לאור 1989
    ספר

    Policy and practice in the management of tropical watersheds
  2. 2

    Water resources and agricultural development in the tropics. מאת Barrow, Christopher J.

    יצא לאור 1987
    ספר

    Water resources and agricultural development in the tropics.

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