00422nam a22001097a 4500008004100000040005500041080002400096245009100120260007700211300001300288650001100301230621b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a626.81/.86(063)bK6  aSixth congress on irrigation and drainage (New Delhi - 1966): bReports for discussion  aNew Delhi: bInternational Commission on Irrigation and Drainage, c1966  a20.499p.  aReport