00849nam 2200265 450 991088549520332120240913170351.00-309-02098-020240913d1973----u y0engy50 zzengUSy 001yySoil erosioncauses and mechanisms ; prevention and control ; proceedings of a conference-workshop held january 26, 1973, Washington, DC, cosponsored by National Science FoundationWashington, DCHighway Research Board1973V, 141 p.1973Special report135Erosione del suolo631.4523itaITUNINARICAUNIMARCBK9910885495203321A AGR 64611748/2024FAGBCFAGBCSoil erosion372696UNINA