Citations are generated automatically from bibliographic data as a convenience and may not be complete or accurate.
National Institute of Standards and Technology (NIST), Commerce Department. "Letter Circular 308: Sound Absorption Coefficients of the More Common Materials (Superseding Letter Circular 303)". Government. Commerce Department, September 8, 1931. https://www.govinfo.gov/app/details/GOVPUB-C13-b4dbcd8d960623a2311a257ff6648237
National Institute of Standards and Technology (NIST), Commerce Department. (1931, September 8). Letter Circular 308: Sound Absorption Coefficients of the More Common Materials (Superseding Letter Circular 303). [Government]. Commerce Department. https://www.govinfo.gov/app/details/GOVPUB-C13-b4dbcd8d960623a2311a257ff6648237
National Institute of Standards and Technology (NIST), Commerce Department. Letter Circular 308: Sound Absorption Coefficients of the More Common Materials (Superseding Letter Circular 303). Commerce Department, (8 Sep 1931), https://www.govinfo.gov/app/details/GOVPUB-C13-b4dbcd8d960623a2311a257ff6648237
National Institute of Standards and Technology (NIST), Commerce Department, Letter Circular 308, GovInfo, (September 8, 1931), https://www.govinfo.gov/app/details/GOVPUB-C13-b4dbcd8d960623a2311a257ff6648237