Major soil crops of the world

Eitemau Tebyg

• Major soil groups of the world ecology, genesis, properties and classification
  gan: Legros, Jean-Paul
  Cyhoeddwyd: (2013)
• Soil genesis and classification /
  gan: S.W.Buol...et al
  Cyhoeddwyd: (2011)
• Soils : Their formation Classification and distribution
  gan: Fitzpatrick, E A
  Cyhoeddwyd: (1986)
• Soils and soil fertility
  gan: Thompson, Louis M
  Cyhoeddwyd: (1957)
• Soils
  gan: Hilgard E