APA

British Standard. BS 5497:1, . (1979). Precision of test methods. Part 1. London: British Standard. BS 5497:1.

Chicago

British Standard. BS 5497:1, . 1979. Precision of test methods. Part 1. London: British Standard. BS 5497:1.

Harvard

British Standard. BS 5497:1, . (1979). Precision of test methods. Part 1. London: British Standard. BS 5497:1.

MLA

British Standard. BS 5497:1, . Precision of test methods. Part 1. London: British Standard. BS 5497:1. 1979.