APA (7th ed.) Citation

(1923). Vol. 21, № 1-6; Physical Review. Second Series. 1923.

Chicago Style (17th ed.) Citation

Vol. 21, № 1-6; Physical Review. Second Series. 1923, 1923.

MLA (9th ed.) Citation

Vol. 21, № 1-6; Physical Review. Second Series. 1923, 1923.

Warning: These citations may not always be 100% accurate.