British Standards Institution. (1964). Specification for screw gauge limits and tolerances. British Standards Institution.
Cita Chicago (17th ed.)British Standards Institution. Specification for Screw Gauge Limits and Tolerances. London: British Standards Institution, 1964.
Cita MLA (8th ed.)British Standards Institution. Specification for Screw Gauge Limits and Tolerances. British Standards Institution, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.