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005 20250411083124.0
008 250401s9999 xx 000 0 eng d
020 _a9789364689526
082 _a500
_bSIN-S
100 _aSingh,Lakhmir
245 0 _aScience:
_bClass VIII
260 _bS.Chand
300 _a276p.
942 _2ddc
_cBK
999 _c561
_d561