Não informado. (2018). Report of the National Academy of Sciences. National Academy of Sciences.
Citação do estilo Chicago (17ª ed.)Não informado. Report of the National Academy of Sciences. Washington: National Academy of Sciences, 2018.
Citação MLA (8ª ed.)Não informado. Report of the National Academy of Sciences. National Academy of Sciences, 2018.
警告：這些引文格式不一定是100％准確.