APA (7th ed.) Citation

Harper, A. F. A., Digby, R. B., Lacey, F., & Thong S. P. Metrication manual. Commonwealth Science Council.

Chicago Style (17th ed.) Citation

Harper, A. F. A., R. B. Digby, F. Lacey, and Thong S. P. Metrication Manual. London: Commonwealth Science Council.

MLA (9th ed.) Citation

Harper, A. F. A., et al. Metrication Manual. Commonwealth Science Council.