Não informado. (1931). Physics: A journal of general and applied physics conducted by the American Physical Society. American Physical Society.
Citação do estilo Chicago (17ª ed.)Não informado. Physics: A Journal of General and Applied Physics Conducted by the American Physical Society. New York: American Physical Society, 1931.
Citação MLA (8ª ed.)Não informado. Physics: A Journal of General and Applied Physics Conducted by the American Physical Society. American Physical Society, 1931.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.