| 000 | 00403nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 170101s1971 xx 000 0 und d | ||
| 082 | _a507 R47N | ||
| 100 | _aRichmond, P.E. | ||
| 245 | 0 | _aNew trends in integrated science teaching, 1969-70 | |
| 260 |
_aParis _bUnesco _c1971 |
||
| 300 | _a28cm; v. | ||
| 650 | _aSCIENCE -- STUDY & TEACHING | ||
| 653 | _aSCIENCE -- STUDY & TEACHING | ||
| 942 |
_2ddc _cB |
||
| 999 |
_c46161 _d46161 |
||