Code of basic requirements for water supply ,drainage and sanitation , 1172-1983 /

समान संसाधन

• Code of basic requirements for water supply, drainage and sanitation. /
  प्रकाशित: (1971)
• Sanitation, drainage and water supply /
  द्वारा: Mitchell, Eric.G .
  प्रकाशित: (1961)
• Water supply and Drainage /
  द्वारा: Freeman, William
  प्रकाशित: (1945)
• Sanitation, drainage and watersupply /
  द्वारा: Mithchell, G. Eric
  प्रकाशित: (1960)
• Rural water supply and sanitation
  द्वारा: Wright, Forrest B
  प्रकाशित: (1939)