000 | 00570nam a2200193Ia 4500 | ||
---|---|---|---|
008 | 130910s9999 xx 000 0 und d | ||
041 | _aeng | ||
082 |
_221st ed. _a631.4 _bHAA/N |
||
100 | _aEvans, C.E. | ||
245 |
_aNitrogen and carbon changes in great plains soils as influenced by cropping and soil treatments _cby H.J. Haas and C.E. Evans |
||
260 |
_aColorado : _bUnited States Department of Agriculture , _cn. d. |
||
300 | _a111 p. | ||
300 | _etables | ||
653 | _aCarbon | ||
653 | _aNitrogen | ||
653 | _aSoils | ||
700 | _aHaas, H.J. | ||
942 |
_cEN _2ddc |
||
999 |
_c3306 _d3306 |