Cita APA (7th ed.)

British Standards Institution. (1970). Method for Rockwell superficial hardness test (N and T scales). British Standards Institution.

Cita Chicago (17th ed.)

British Standards Institution. Method for Rockwell Superficial Hardness Test (N and T Scales). London: British Standards Institution, 1970.

Cita MLA (8th ed.)

British Standards Institution. Method for Rockwell Superficial Hardness Test (N and T Scales). British Standards Institution, 1970.