| 000 | 00409nam a2200157Ia 4500 | ||
|---|---|---|---|
| 001 | 84594 | ||
| 008 | 200505s9999 xx 000 0 und d | ||
| 040 |
_aEC-QuPUC _bspa |
||
| 082 | 0 | 4 | _a507/Un2s/1962 |
| 245 | 0 | _aUNESCO source book for science teaching | |
| 250 | _a2a. Ed. | ||
| 260 |
_a[Paris, Francia] _bUNESCO _c1962 |
||
| 300 |
_a[252] p. _b _c24 cm.*il. |
||
| 650 | 4 | _aCIENCIA ENSEÑANZA | |
| 999 |
_c126081 _d126081 |
||
| 942 | 0 | 0 | _00 |