Não informado. (2020). Memoirs of the National Academy of Sciences. Government Printing Office.
Chicago-referens (17:e uppl.)Não informado. Memoirs of the National Academy of Sciences. Washington: Government Printing Office, 2020.
MLA-referens (8:e uppl.)Não informado. Memoirs of the National Academy of Sciences. Government Printing Office, 2020.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.