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041 _aeng
082 _a602.8
110 _aWELCH SCIENTIFIC COMPANY
245 0 _aWELCH LABORATORY APPARATUS
250 _a1ST ED.
260 _aEstados Unidos
_bWELCH
_c1968
260 _aNEW YORK
300 _a989
942 _c01
010 _a17086
999 _c206317
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