Dyfyniad APA

British Standards Institution. (1975). Specification for engineers' comparators for external measurement (2nd revision.). B.S.I..

Dyfyniad Arddull Chicago

British Standards Institution. Specification for Engineers' Comparators for External Measurement. 2nd revision. London: B.S.I., 1975.

Dyfyniad MLA

British Standards Institution. Specification for Engineers' Comparators for External Measurement. 2nd revision. B.S.I., 1975.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.