00680nam a2200217Ia 4500003000400000008004100004020001500045082001600060245007900076250001200155260004700167300001300214650003400227650003800261650003400299650003500333700002100368700002400389700002500413700002400438OSt170901s1955 xx 000 0 und d a0471765201 a627.5bS24S 0aSoil and Water Conservation Engineering / bby Glenn O. Schwab...[et. al.] a2nd ed. a.- New Yorkb: John Wiley and Sonsc, 1966 axv,683p. aTechnology (Applied Sciences) aEngineering and Allied Operations aSoil Conservation Engineering aWater Conservation Engineering aSchwab, Glenn O. aFrevery, Richard K. aEdminster, Talctt W. aBarness, Kenneth k.