Não informado. (1973). Dimensions. U.S. Department of Commerce, National Bureau of Standards.
Chicago-referens (17:e uppl.)Não informado. Dimensions. Washington: U.S. Department of Commerce, National Bureau of Standards, 1973.
MLA-referens (8:e uppl.)Não informado. Dimensions. U.S. Department of Commerce, National Bureau of Standards, 1973.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.