| 000 | 00380nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 130225s9999 xx 000 0 und d | ||
| 080 | _a633:631.459:631.61 | ||
| 100 | _aDuley, F.L. | ||
| 245 | _aEstimating the amount of crop residue on a field | ||
| 260 |
_aWashington _c1958 |
||
| 300 | _a31 p. | ||
| 440 | _aNo. 136; United States Depart | ||
| 901 | _a58005 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c9938 _d9938 |
||