Não informado. (1915). The Scientific Monthly. American Association for the Advancement of Science.
Chicago-Zitierstil (17. Ausg.)Não informado. The Scientific Monthly. Washington: American Association for the Advancement of Science, 1915.
MLA-Zitierstil (8. Ausg.)Não informado. The Scientific Monthly. American Association for the Advancement of Science, 1915.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.