Drainage of agricultural land: A practical hand book for the planning design construction and maintenanace of agricultural drainage system /

Eitemau Tebyg

• Land drainage: Planning and design of agricultural drainage systems /
  gan: Smedana, Lambert K .
  Cyhoeddwyd: (1983)
• DRAINAGE OF AGRICULTURAL LAND
  gan: US DEPARTMENT, OF AGRICULTURE
  Cyhoeddwyd: (1990)
• Design of land drainage
  gan: Thorn, Roland Berkaley
  Cyhoeddwyd: (1959)
• Land drainage /
  gan: Kendell, R G .
  Cyhoeddwyd: (1995)
• land drainage
  gan: Gardiner, M.J
  Cyhoeddwyd: (1982)