000 00537nam a22001577a 4500
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040 _aNational Science Library
_cNational Science Library
080 _a66.019
_bJ2
245 _aEngineering bulletin:
_bProceedings of the seventh industrial waste conference
_c/ Purdue University
260 _aPurdue:
_bLafayette Ind.,
_c1952
490 _aExtension series
_v79
500 _aVol. 40; vii, 581p.
650 _aChemical technology
653 _aWaste conference
942 _2udc
_cREF
999 _c28949
_d28949