Cita APA (7th ed.)

British Standards Institution. (1980). BSI buyers guide. Certification and Assessment Department of the British Standards Institution.

Cita Chicago (17th ed.)

British Standards Institution. BSI Buyers Guide. [London]: Certification and Assessment Department of the British Standards Institution, 1980.

Cita MLA (8th ed.)

British Standards Institution. BSI Buyers Guide. Certification and Assessment Department of the British Standards Institution, 1980.