| 000 | 00450nab a2200145Ia 4500 | ||
|---|---|---|---|
| 003 | ES-SlBCS | ||
| 005 | 20210601142436.0 | ||
| 008 | 140529s1976 xxu||||| |||| 00| 0 spa d | ||
| 041 | _aspa | ||
| 100 | 1 |
_aWortman, Sterling _9270524 |
|
| 245 | 0 | 0 |
_aAlimentación y agricultura _c Sterling Wortman |
| 650 | 0 | 4 |
_aAgricultura _915944 |
| 773 | 0 |
_tInvestigacion y Ciencia (Traducción de: Scientific American) _gnº. 2, 1976, págs. 7 _wRev1650 |
|
| 942 | _cAR | ||
| 999 |
_c676943 _d676943 |
||