APA (7th ed.) Citation

Institution, 8. B. S. (1990). Cross recesses for screws. London : British Standards Institution.

Chicago Style (17th ed.) Citation

Institution, 8096 British Standards. Cross Recesses for Screws. London : British Standards Institution, 1990.

MLA (9th ed.) Citation

Institution, 8096 British Standards. Cross Recesses for Screws. London : British Standards Institution, 1990.

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