| 000 | 00469nam a2200181Ia 4500 | ||
|---|---|---|---|
| 008 | 250428s9999 xx 000 0 und d | ||
| 020 | _a9-23102779-4 | ||
| 082 | _a372.37 I58 1992 | ||
| 245 | 0 | _aInnovations in science and technology education, vol.IV | |
| 245 | 0 | _cLayton, David. | |
| 260 | _bUNESCO. | ||
| 260 | _c1992 | ||
| 300 | _a220 p | ||
| 526 | _a300 Social Sciences | ||
| 650 | _aEducational innovations -- Periodicals. | ||
| 942 | _2DDC | ||
| 942 | _cB | ||
| 999 |
_c30048 _d30048 |
||