| 000 | 00356 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 |
_a _d |
|
| 245 | 1 |
_aCosts and benefits of agricultural research _bThe state of the arts |
|
| 260 |
_aWashington _c1979 |
||
| 300 | _a1-70 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aResearch, Agriculture, Arts Washington World Bank Staff working Paper No. 360 | ||
| 901 | _aS31838 | ||
| 999 |
_c114441 _d114441 |
||