Não informado. (1931). Physics: A journal of general and applied physics conducted by the American Physical Society. American Physical Society.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Physics: A Journal of General and Applied Physics Conducted by the American Physical Society. New York: American Physical Society, 1931.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Physics: A Journal of General and Applied Physics Conducted by the American Physical Society. American Physical Society, 1931.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.