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| 001 | 2660611 | ||
| 005 | 20130515020333.0 | ||
| 008 | 720928s1972 nyua b 000 0 eng | ||
| 010 | _a 72075617 | ||
| 020 | _a817040307 | ||
| 040 |
_aDLC _cDLC _dDLC |
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| 050 |
_aLB1028. 3 _b.B54 1972 |
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| 100 | 1 | _aRAO USHA | |
| 245 | 0 | 0 | _aEducational technology; |
| 260 |
_aDHELI _bBOMBAY _c[1991] |
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| 300 |
_a300 p. _billus. _c25 cm. |
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| 504 | _aBibliography: p. 264-270. | ||
| 650 | 0 |
_aEducational technology. _96065 |
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| 906 |
_a7 _bcbc _corignew _d2 _eopcn _f19 _gy-gencatlg |
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| 942 |
_2lcc _cBK _hLB1028.3.B54 1972 |
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_c65083 _d65083 |
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