Não informado. (1931). Physics: A journal of general and applied physics conducted by the American Physical Society. American Physical Society.
Chicago-viite (17. p.)Não informado. Physics: A Journal of General and Applied Physics Conducted by the American Physical Society. New York: American Physical Society, 1931.
MLA-viite (8. p.)Não informado. Physics: A Journal of General and Applied Physics Conducted by the American Physical Society. American Physical Society, 1931.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.