APA (7th ed.) Citation

British Standards Institution. (1967). Specification for ISO metric black hexagon bolts, screws and nuts metric units. British Standards Institution.

Chicago Style (17th ed.) Citation

British Standards Institution. Specification for ISO Metric Black Hexagon Bolts, Screws and Nuts Metric Units. London: British Standards Institution, 1967.

MLA (8th ed.) Citation

British Standards Institution. Specification for ISO Metric Black Hexagon Bolts, Screws and Nuts Metric Units. British Standards Institution, 1967.

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