British Standards Institution. (1968). Specification for fine pitch gears. British Standards Institution.
Chicago Style aipamenaBritish Standards Institution. Specification for Fine Pitch Gears. London: British Standards Institution, 1968.
MLA aipamenaBritish Standards Institution. Specification for Fine Pitch Gears. British Standards Institution, 1968.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.