Soil conservation

類似資料

• Introduction to soil and water conservation engineering /
  著者:: Mal, Bimal Chandra .
  出版事項: (1999)
• PRINCIPLES OF AGRICULTURAL ENGINEERING:V-2
  著者:: MICHAEL, A M, 等
  出版事項: (1997)
• Reference Manual of Soil and Water Conservation Engineering
  著者:: Biwalkar, Nilesh, 等
  出版事項: (2014)
• Conserving soil
  著者:: Butter, M.D
  出版事項: (1964)
• SOIL CONSERVATION
  著者:: BENNETT,HUGH HAMMOND
  出版事項: (1939)