| 000 | 00345nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 150321s9999 xx 000 0 und d | ||
| 020 | _a971104174X | ||
| 080 | _a633.18:631.84EFF | ||
| 245 | _aEfficiency of nitrogen fertilizers for rice | ||
| 260 |
_c1987 _aLos Banos _bInternational Rice Research Institute |
||
| 300 | p | _a259p. | |
| 942 |
_cBK _2udc |
||
| 999 |
_c12918 _d12918 |
||