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