| 000 | 003260000a22001090004500 | ||
|---|---|---|---|
| 245 | _aThird session of the international working group on environmental education and training of engineers/biographical data ... | ||
| 110 | _aUNESCO | ||
| 260 |
_aParis _bUNESCO _c1979 |
||
| 080 |
_a62:37 _bU6 |
||
| 041 | _aEN | ||
| 942 | _cBK | ||
| 999 |
_c113451 _d113451 |
||