Não informado. (1904). Bulletin of the Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards.
Citace podle Chicago (17th ed.)Não informado. Bulletin of the Bureau of Standards. Washington: U.S. Department of Commerce, National Bureau of Standards, 1904.
Citace podle MLA (8th ed.)Não informado. Bulletin of the Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards, 1904.
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