APA (7th ed.) Citation

International Bureau of Weights and Measures, Page, & Vigoureux. (1973). SI: The international system of units. National Physical Laboratory, Dept. of Trade and Industry.

Chicago Style (17th ed.) Citation

International Bureau of Weights and Measures, Page, and Vigoureux. SI: The International System of Units. London: National Physical Laboratory, Dept. of Trade and Industry, 1973.

MLA (8th ed.) Citation

International Bureau of Weights and Measures, et al. SI: The International System of Units. National Physical Laboratory, Dept. of Trade and Industry, 1973.

Warning: These citations may not always be 100% accurate.