| 000 | 00368 a2200121 4500 | ||
|---|---|---|---|
| 080 |
_a338.1 _bO 28 O |
||
| 245 | 1 |
_aOrganic agriculture _bEconomic and ecological comparisons with conventional methods _cby R.C. Oelhaf |
|
| 260 |
_aMontclair _bAllenheld, Osmun Co. _c1978 |
||
| 650 | _aOrganic Agruculture | ||
| 100 | 1 |
_aOelhaf, R.C. _d |
|
| 300 | _a271 pp. | ||
| 901 | _a144520 | ||
| 999 |
_c62396 _d62396 |
||