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New soil erosion model erodes farmers' patience.

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اقرأ على الانترنت اقرأ أكثر حفظ في قائمتي
  • المؤلفون: Glanz, James
  • المصدر:
    Science. 6/17/1994, Vol. 264 Issue 5166, p1661. 2p. 1 Color Photograph.