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040 _e93908
_aMAIN
041 _aEnglish
082 _a519.5 B469O
100 _aBhardwaj, Rajvir
245 0 _aOn consructions analysis of balanced incomplete and efficiency block designs
260 _aRohtak
300 _a87 p.
942 _cTH
999 _c74486
_d74486