Cita APA

British Standards Institution. (1979). Universal decimal classification (2nd English full ed.). British Standards Institution.

Citación estilo Chicago

British Standards Institution. Universal Decimal Classification. 2nd English full ed. London: British Standards Institution, 1979.

Cita MLA

British Standards Institution. Universal Decimal Classification. 2nd English full ed. British Standards Institution, 1979.

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