| 000 | 00508nam a22001817a 4500 | ||
|---|---|---|---|
| 999 |
_c19638 _d19638 |
||
| 003 | BD-DhPL | ||
| 005 | 20191210164433.0 | ||
| 008 | 190117b ||||| |||| 00| 0 eng d | ||
| 040 |
_aBD-DhPL _beng _cBD-DhPL _dBD-DhPL |
||
| 082 | _a507 / U1u | ||
| 110 |
_aUnesco. _9273447 |
||
| 245 | _aUnesco source book for the science teaching. | ||
| 260 |
_aNetherlands : _bUnesco, _c1956. |
||
| 300 |
_a221p. : _bill. ; _c26 cm. |
||
| 508 | _a | ||
| 650 |
_aScience -- Study and teaching. _9273449 |
||
| 942 |
_2ddc _cBK |
||