Não informado. (1957). Science world: The magazine for high-school science students. Scholastic Magazines.
Chicago-Zitierstil (17. Ausg.)Não informado. Science World: The Magazine for High-school Science Students. New York: Scholastic Magazines, 1957.
MLA-Zitierstil (8. Ausg.)Não informado. Science World: The Magazine for High-school Science Students. Scholastic Magazines, 1957.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.