| 000 | 00393 a2200157 4500 | ||
|---|---|---|---|
| 020 | _a923101241X | ||
| 082 | 0 | 4 |
_a540.7 _bNEW |
| 100 |
_aUNESCO _933072 |
||
| 245 | 0 | 0 |
_aNew trends in chemistry teaching _cUnesco |
| 260 |
_aParis _bUnesco press _c1975 |
||
| 300 | _a159p. | ||
| 490 | 1 | _aTeaching of basic sciences series | |
| 546 | _aeng. | ||
| 650 |
_aChemistry-Teaching _929477 |
||
| 942 | _cBK | ||
| 999 |
_c58545 _d58545 |
||