Front cover image for Computer program NCALC user's manual : verification of Manning's roughness coefficient in channels

Computer program NCALC user's manual : verification of Manning's roughness coefficient in channels

eBook, English, 1985 [i.e. 1986]
U.S. Dept. of the Interior, Geological Survey ; Open-File Services Section, Western Distribution Branch, Lakewood, Colo., Denver, CO, 1985 [i.e. 1986]
1 online resource (iv, 27 pages) : illustrations
680100519
Electronic reproduction, [Place of publication not identified], HathiTrust Digital Library, 2010