| 000 | 00358nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 100 | _aWelch, I.F. | ||
| 245 | _aNitrogen use and behavior in crop production | ||
| 260 | _aUrbana | ||
| 260 | _c1979 | ||
| 300 | _a56 p. | ||
| 440 | _aNo. 761; Illinois Agricultural | ||
| 901 | _pS32291 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c128424 _d128424 |
||