00845nam a2200265Ia 4500 Para_4807 CHAP 220125s1920 xx 000 0 und d 203248 CHAP PA FOLLETO 2209 Ramser, C. E. 94535 The flow of water in dredged drainage ditches : the results of experiments to determine the roughness coefficient, n, in Kutter's formula / C. E. Ramser Washington : Department of Agriculture 60 p. EUA. Department of Agriculture Bull.; 832 168934 Drenaje Modelos matemáticos 34204 PA FOLLETO 2209 A 0000001920 WASa 0000000000 00 1920 PARA PARA 1 203248 203248 0 0 local 0 0 FOLL PA PA 12 2005-10-27 PARA 0 PA_2312 2022-01-25 00:00:00 2022-01-25 FOLL 3