000 00313 a2200133 4500
080 _a631.416.1
_bB 288 S
245 1 _aSoil nitrogen
_cby W.V. Barthobomew
260 _c1965
650 _aSoil Nitrogen
440 _aNo. 10
_vAgronomy series
100 1 _aBarthobomow, W.V.
_d
300 _a615 p.
901 _a87198
999 _c43817
_d43817