| 000 | 00384 am a2200121 a 4500 | ||
|---|---|---|---|
| 100 | 1 | _aHill, E.B., Descartes, S.L. | |
| 245 | 1 | _aAn economic background for agricultural research in Puerto Rico | |
| 260 |
_aPuerto Rico _c1939 |
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| 300 | _a1-61 p. | ||
| 942 |
_2udc _cB |
||
| 440 | _aAgriculture, Economic Puerto Rico Agricultural Experiment Station. Bulletin No. 51 | ||
| 901 | _aS49357 | ||
| 999 |
_c105785 _d105785 |
||