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| 005 | 20250508162656.0 | ||
| 008 | 008 250505s9999 xx 000 0 eng d | ||
| 037 | _aReference | ||
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_aFEDL _beng _cFEDL |
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_aeng _2eng |
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| 084 |
_a507, NCE _qFEDL |
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| 245 | 0 | _aTeaching of science in secondary schools | |
| 260 |
_aNew Delhi, India _bNational Council of Educational Research and Training _c1982 |
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| 300 | _axii,250p. | ||
| 942 |
_cREF _h507, NCE |
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| 999 |
_c1377992 _d1377992 |
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