Hydraulics of Rivers, Weirs and Sluices, the Derivation of new and More Accurate Formulas for Discharge Through Rivers and Canals Obstructed by Weirs, Sluices, etc., According to the Principles of Gustav Ritter von Wex: Buy Hydraulics of Rivers, Weirs and Sluices, the Derivation of new and More Accurate Formulas for Discharge Through Rivers and Canals Obstructed by Weirs, Sluices, etc., According to the Principles of Gustav Ritter von Wex by Molitor David a 1866-1939 at Low Price in India