00318nam a2200109Ia 450000500170000000800410001705000160005810000160007424500590009026000440014965000150019320251229182401.0251229s9999    xx            000 0 und d  aTD 353 .S58  aSmith, M.J. 2aA study of runoff from small and watershed.cM.J Smith  aColumbusb Ohio state university; 1972.  aWatersheds