Soil

Antzeko izenburuak

• Soil
  nork: Ken Simpson
  Argitaratua: (1983)
• Fertilizer and measures
  nork: Simpson, Ken
  Argitaratua: (1986)
• SOIL CHEMISTRY AND ITS APPLICATIONS
  nork: CRESSER MALCOLM & KILLHAM KEN
  Argitaratua: (1995)
• SOIL CHEMISTRY AND ITS APPLICATIONS
  nork: CRESSER MALCOLM & KILLHAM KEN
  Argitaratua: (1993)
• Soils and soil fertility
  nork: Thompson, Louis M, et al.
  Argitaratua: (2008)