| 000 | 00336 a2200121 4500 | ||
|---|---|---|---|
| 080 |
_a631.84 _bT 587 S |
||
| 245 | 1 |
_aObservations on the planned provision on nitrogen fertilizer for the world _cby J. Tinbergen |
|
| 260 |
_aLeiden _c1956 |
||
| 650 | _aNitrogen Fertilizer | ||
| 100 | 1 |
_aTinbergen, J. _d |
|
| 300 | _a45 p. | ||
| 901 | _a49939 | ||
| 999 |
_c45585 _d45585 |
||