APA Edition Citation

B.S.I. (1963). Universal Decimal Classification English Abridged edition 1961 (3.). British standards Institution.

Chicago Edition Citation

B.S.I. Universal Decimal Classification English Abridged Edition 1961. 3. London: British standards Institution, 1963.

MLA Edition Citation

B.S.I. Universal Decimal Classification English Abridged Edition 1961. 3. British standards Institution, 1963.

Warning: These citations may not always be 100% accurate.