British Standards Institution. (1969). Specification for feeler gauges. British Standards Institution.
Cita Chicago (17th ed.)British Standards Institution. Specification for Feeler Gauges. London: British Standards Institution, 1969.
Cita MLA (8th ed.)British Standards Institution. Specification for Feeler Gauges. British Standards Institution, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.