British Standards Institution. Universal decimal classification. 4v in 5: Classes 50 general works on pure science,51 mathematics etc.
Chicago Edition CitationBritish Standards Institution. Universal Decimal Classification. 4v in 5: Classes 50 General Works on Pure Science,51 Mathematics Etc.
MLA Edition CitationBritish Standards Institution. Universal Decimal Classification. 4v in 5: Classes 50 General Works on Pure Science,51 Mathematics Etc.
Warning: These citations may not always be 100% accurate.