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| 999 |
_c17320 _d17320 |
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| 003 | BD-DhPL | ||
| 005 | 20191222084235.0 | ||
| 008 | 190114b ||||| |||| 00| 0 eng d | ||
| 040 |
_aBD-DhPL _bEnglish _cBD-DhPL _dBD-DhPL |
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| 082 | _a574.07 / U3n | ||
| 110 |
_aUNESCO. _9274929 |
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| 245 | _aNew treads in biology teaching / | ||
| 260 |
_aParis : _bUNESCO, _cc 1969. |
||
| 300 |
_aVols. : _bill. ; _c27 cm. |
||
| 505 | _aV. 2-- ; | ||
| 508 | _a331 | ||
| 650 |
_aBiology. _9274930 |
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| 942 |
_2ddc _cBK |
||