Não informado. (1999). Miscellaneous Publications. U.S. Department of Commerce, National Bureau of Standards.
Chicago Style (17th ed.) CitationNão informado. Miscellaneous Publications. Washington: U.S. Department of Commerce, National Bureau of Standards, 1999.
MLA (8th ed.) CitationNão informado. Miscellaneous Publications. U.S. Department of Commerce, National Bureau of Standards, 1999.
Warning: These citations may not always be 100% accurate.