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| 245 | _aEncyclopaedia of Scientific Developments Inventions Discoveries: Vol.01 | ||
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_bBhavana Books, _c1996. _aNew Delhi: |
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_axvi,188p.; _bill.; _c22 cm _eMap.; |
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_926346 _aEncyclopaedia of Scientific Developments Inventions Discoveries |
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_926345 _aDavis, J.R. Ainsworth _eEd.; |
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