http://dewey.info/scheme/edition/e23/ en
513 Arithmetic
513.1 Arithmetic combined with other branches of mathematics
513.12 Arithmetic and algebra 513.13 Arithmetic and geometry 513.14 Arithmetic, algebra, geometry
http://dewey.info/scheme/edition/e22/ de
513 Arithmetik
513.1 Arithmetik in Kombination mit anderen Richtungen der Mathematik
513.12 Arithmetik und Algebra 513.13 Arithmetik und Geometrie 513.14 Arithmetik, Algebra, Geometrie
Dewey Decimal Classification
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