http://dewey.info/scheme/edition/e23/ en
338.47 Services and specific products
338.47004 Computer industry
338.4700411 Supercomputer industry 338.470046 Computer network industry
http://dewey.info/scheme/edition/e22/ de
338.47 Dienstleistungen und einzelne Produkte
338.47004 Computerindustrie, . . .
338.4700411 Supercomputerindustrie 338.470046 Computernetzwerkindustrie, . . .
Dewey Decimal Classification
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