APA(7版)引用形式

Não informado. (1903). Circular of the Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards.

Chicagoスタイル(17版)引用形式

Não informado. Circular of the Bureau of Standards. Washington: U.S. Department of Commerce, National Bureau of Standards, 1903.

MLA(8版)引用形式

Não informado. Circular of the Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards, 1903.

警告: この引用は必ずしも正確ではありません.