TY - BOOK AU - Barnes,Harry H. TI - Roughness characteristics of natural channels, AV - TC801 .U2 no. 1849 U1 - 551.4/83 PY - 1967/// CY - Washington PB - U.S. Govt. Print. Off. KW - Channels (Hydraulic engineering) KW - Frictional resistance (Hydrodynamics) KW - Stream measurements KW - United States N1 - Bibliography: p. 210 ER -