Não informado. (1968). Journal of Research of the National Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards.
Citação do estilo Chicago (17ª ed.)Não informado. Journal of Research of the National Bureau of Standards. Washington: U.S. Department of Commerce, National Bureau of Standards, 1968.
Citação MLA (8ª ed.)Não informado. Journal of Research of the National Bureau of Standards. U.S. Department of Commerce, National Bureau of Standards, 1968.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.