APA (7th ed.) Citation

British Standards Institution. (1966). Specification for retainers for electronic tubes and valves. British Standards Institution.

Chicago Style (17th ed.) Citation

British Standards Institution. Specification for Retainers for Electronic Tubes and Valves. London: British Standards Institution, 1966.

MLA (8th ed.) Citation

British Standards Institution. Specification for Retainers for Electronic Tubes and Valves. British Standards Institution, 1966.