Não informado. (1999). Miscellaneous Publications. U.S. Department of Commerce, National Bureau of Standards.
Chicago-Zitierstil (17. Ausg.)Não informado. Miscellaneous Publications. Washington: U.S. Department of Commerce, National Bureau of Standards, 1999.
MLA-Zitierstil (8. Ausg.)Não informado. Miscellaneous Publications. U.S. Department of Commerce, National Bureau of Standards, 1999.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.