| 000 | 00391nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 130223s9999 xx 000 0 und d | ||
| 080 | _a631.454:633.491 | ||
| 100 | _aZaag, P.V. | ||
| 245 | _aSoil fertility requirement for potato production | ||
| 260 | _aPeru | ||
| 260 | _c1978 | ||
| 300 | _a19 p. | ||
| 440 | _aNo. 14; International Potato C | ||
| 901 | _pS38067 | ||
| 942 |
_cB _2udc |
||
| 999 |
_c133644 _d133644 |
||