Cita APA (7th ed.)

British Standards Institution. (1972). Method for determination of sulphated ash from lubricating oils and additives. B.S.I..

Cita Chicago (17th ed.)

British Standards Institution. Method for Determination of Sulphated Ash from Lubricating Oils and Additives. London: B.S.I., 1972.

Cita MLA (8th ed.)

British Standards Institution. Method for Determination of Sulphated Ash from Lubricating Oils and Additives. B.S.I., 1972.