| 000 | 00459nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 150327s9999 xx 000 0 und d | ||
| 041 | _aENG | ||
| 080 |
_a631 _bBLA-A |
||
| 245 | _aAgronomy in a changing world and research needs for the seventies | ||
| 260 |
_c1971 _aMadison _bAmerican Society of Agronomy Publication |
||
| 300 | _av, 65p. | ||
| 650 | _a AgronomicsWorld AgronomyAgricultural Reasearch | ||
| 700 | _aBlack, C. A. [et al.] | ||
| 942 |
_cBK _2udc |
||
| 999 |
_c15079 _d15079 |
||