00392nam a2200133Ia 4500008004100000082001900041100002000060245003000080260003300110300001200143490005900155600001900214650002500233140224s9999    xx            000 0 und d  a631.4.008.2 H1  aGustafson, A.F.  aSoils and soil management  aNew YorkbMc Graw-Hillc1941  av,424p.  aMc Graw-Hill Publications in the Agricultural Sciences  aA.F. Gustafson  aSoil,Farm-management