Não informado. (1999). Miscellaneous Publications. U.S. Department of Commerce, National Bureau of Standards.
Citação do estilo Chicago (17ª ed.)Não informado. Miscellaneous Publications. Washington: U.S. Department of Commerce, National Bureau of Standards, 1999.
Citação MLA (8ª ed.)Não informado. Miscellaneous Publications. U.S. Department of Commerce, National Bureau of Standards, 1999.
警告：這些引文格式不一定是100％准確.