APA (7th ed.) Citation

British Standards Institution & British Standards Institution. Universal decimal classification. (1988). Universal decimal classification =: Classification d ecimale universelle = Dezimalklassifikation (International medium ed. English text.). British Standards Institution.

Chicago Style (17th ed.) Citation

British Standards Institution and British Standards Institution. Universal decimal classification. Universal Decimal Classification =: Classification D Ecimale Universelle = Dezimalklassifikation. International medium ed. English text. London: British Standards Institution, 1988.

MLA (9th ed.) Citation

British Standards Institution and British Standards Institution. Universal decimal classification. Universal Decimal Classification =: Classification D Ecimale Universelle = Dezimalklassifikation. International medium ed. English text. British Standards Institution, 1988.