APA (7th ed.) Citation

British Standards Institution. (1968). Specification for sizes of papers and boards. British Standards Institution.

Chicago Style (17th ed.) Citation

British Standards Institution. Specification for Sizes of Papers and Boards. London: British Standards Institution, 1968.

MLA (8th ed.) Citation

British Standards Institution. Specification for Sizes of Papers and Boards. British Standards Institution, 1968.

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