| 000 | 00381nam a2200121Ia 4500 | ||
|---|---|---|---|
| 001 | MPKV051990 | ||
| 008 | 120911s9999 xx 000 0 und d | ||
| 082 | _a630 | ||
| 245 |
_aJournal of the Royal Agricultural Society of England Vol 132 _c; |
||
| 246 | _aJournal of the Royal Agricultural Society of England Vol 132 | ||
| 260 |
_aLondon _bJohn Murray Ltd. _c1971 |
||
| 650 | _aAgronomy | ||
| 999 |
_c49992 _d49992 |
||