00524nam a22001457a 4500 230609b |||||||| |||| 00| 0 eng d National Science Library National Science Library 626.813:627.51(082.2) K9 Symposium on sediment problems in irrigation and drainage channels / Central Board of Irrigation & Power, New Delhi: Central Board of Irrigation & Power, 1969 113p. Science Environmental science udc REP 41611 41611 0 0 udc 0 626813627510822_K9 0 62045 NSL NSL GF/Rk-13/C-15/R-3 1974-03-20 0 626.813:627.51(082.2) K9 63307 2023-06-09 00:00:00 2023-06-09 REP