| 000 | 00473nam a2200169Ia 4500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 005 | 20230606124852.0 | ||
| 008 | 210423s1988 xx 000 0 und d | ||
| 040 | _cAL | ||
| 041 | _aeng | ||
| 082 |
_a304.2 _223 _bKELF |
||
| 245 | _aField work in ecology for secondary schools in tropical countries. | ||
| 260 |
_aUSA _bUNESCO _c1988 |
||
| 365 | _cINR | ||
| 906 | _acountries. ; ecology ; Field ; schools ; secondary ; tropical ; work | ||
| 942 |
_2ddc _cBK |
||
| 999 |
_c174929 _d174929 |
||