http://dewey.info/scheme/edition/e23/ en
662 Technology of explosives, fuels, related products
662.8 Other fuels
662.82 Colloidal and mud fuels 662.86 Boron fuels 662.87 Wastes as fuels 662.88 Biomass as fuel
http://dewey.info/scheme/edition/e22/ de
662 Explosivstoffe, Brennstoffe, verwandte Produkte
662.8 Andere Brennstoffe
662.82 Kolloide Brennstoffe und Schlammbrennstoffe 662.86 Borhaltige Kraftstoffe 662.87 Abfälle als Brennstoffe 662.88 Biomasse als Brennstoff
Dewey Decimal Classification
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