Não informado. (2000). Saturday Review of the Sciences. Saturday Review Associates.
Chicago-referens (17:e uppl.)Não informado. Saturday Review of the Sciences. San Francisco, Calif: Saturday Review Associates, 2000.
MLA-referens (8:e uppl.)Não informado. Saturday Review of the Sciences. Saturday Review Associates, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.