Não informado. (2018). Report of the National Academy of Sciences. National Academy of Sciences.
Chicago-referens (17:e uppl.)Não informado. Report of the National Academy of Sciences. Washington: National Academy of Sciences, 2018.
MLA-referens (8:e uppl.)Não informado. Report of the National Academy of Sciences. National Academy of Sciences, 2018.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.