Não informado. (1957). Science world: The magazine for high-school science students. Scholastic Magazines.
Chicago-referens (17:e uppl.)Não informado. Science World: The Magazine for High-school Science Students. New York: Scholastic Magazines, 1957.
MLA-referens (8:e uppl.)Não informado. Science World: The Magazine for High-school Science Students. Scholastic Magazines, 1957.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.