000 00474nam a2200193Ia 4500
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041 _aeng
082 _a001.43
100 _aLLOYD, LEWIS E.
245 0 _aTECHNIQUES FOR EFFICIENT RESEARCH
250 _a1ST ED.
260 _aEstados Unidos
_bCHEMICAL PUBLISHING
_c1966
260 _aNEW YORK
300 _a215
650 _aTECNICAS DE INVESTIGACION
942 _c01
010 _a24637
999 _c212944
_d212944