APA (7th ed.) Citation

British standards Institution. (1985). Universal decimal classification: Classification décimale universelle = Dezimalklassifikation (International medium ed. English text.). British Standards Institution.

Chicago Style (17th ed.) Citation

British standards Institution. Universal Decimal Classification: Classification Décimale Universelle = Dezimalklassifikation. International medium ed. English text. London: British Standards Institution, 1985.

MLA (9th ed.) Citation

British standards Institution. Universal Decimal Classification: Classification Décimale Universelle = Dezimalklassifikation. International medium ed. English text. British Standards Institution, 1985.