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Erosion and pollution problems exist in every country, and each country has its own approach to managing and conserving soil and water.  Soil and waqter conservation is everybody's business.

出版物详细信息

  • 已出版: 1980
  • 出版者: Prentice-Hall
  • ISBN-10: 0138221553
  • Dewey Decimal: 333.72
  • ECHO 图书馆: 333.72 TRO