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020 _a9788120341661
040 _aMAIN
041 _aEnglish
082 _a621 JOH
100 _aJohn, K. C
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245 0 _aMechanical workshop practice
250 _a2nd
260 _bPHI Learning
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300 _a233
650 _aPhysics
942 _cBK
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