APA (7e ed.) Bronvermelding

Não informado. (2000). Technical note. U.S. Department of Commerce, National Bureau of Standards.

Chicago (17e ed.) Bronvermelding

Não informado. Technical Note. Washington: U.S. Department of Commerce, National Bureau of Standards, 2000.

MLA (8e ed.) Bronvermelding

Não informado. Technical Note. U.S. Department of Commerce, National Bureau of Standards, 2000.

Let op: Deze citaties zijn niet altijd 100% accuraat.