APA (7th ed.) Citation

British Standards Institution. (1968). Universal decimal classification: UDC 77 Photography (English full ed.). British Standards Institution.

Chicago Style (17th ed.) Citation

British Standards Institution. Universal Decimal Classification: UDC 77 Photography. English full ed. London: British Standards Institution, 1968.

MLA (8th ed.) Citation

British Standards Institution. Universal Decimal Classification: UDC 77 Photography. English full ed. British Standards Institution, 1968.

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