000 00397nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aLeo, Wei-Ming
245 _aEffect on soils and crops of long continued use of sulfate of ammonia and nitrat
260 _aKingston
260 _c1959
300 _a31 p.
440 _aRhode Islands Agricultural Exp
901 _pS2308
942 _cB
_2udc
999 _c121083
_d121083