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020 _a0761965939
037 _cTB
040 _aCRL
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041 _2eng
_aeng
084 _aSigma:f P0
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100 _aBurns Robert B.
_9142878
245 0 _aIntroduction to research methods
_cBurns Robert B.
260 _aLondon
_bSage Publication UK
_c2000
300 _a611p.
_ccm.
650 _aRESEARCH METHODS
_9820830
942 _hSigma:f P0
_cTB
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