Não informado. (1938). Building materials and structures report. U.S. Department of Commerce, National Bureau of Standards.
Citace podle Chicago (17th ed.)Não informado. Building Materials and Structures Report. Washington: U.S. Department of Commerce, National Bureau of Standards, 1938.
Citace podle MLA (8th ed.)Não informado. Building Materials and Structures Report. U.S. Department of Commerce, National Bureau of Standards, 1938.
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