66 Chemical engineering
660 Chemical engineering and related technologies
660.01 Philosophy and theory 660.02 Miscellany 660.03 Dictionaries, encyclopedias, concordances 660.04 Chemical technologies of specific states of matter 660.092 Chemical engineers 660.2 General topics in chemical engineering 660.6 Biotechnology 660.7 Industrial stoichiometry
Dewey Decimal Classification
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