السلام عليكمPractical Channel Hydraulics: Roughness, Conveyance and Affluxصورة: http://u.damasgate.com/001/4/dgq5nim3zmubu9754jce.jpg Donald W. Knight, Caroline Hazlewood, Rob Lamb, Paul G. Samuels, Koji Shiono - Practical Channel Hydraulics: Roughness, Conveyance and Afflux2nd EditionCRC...