APA (7th ed.) Citation

Rayleigh, R. J. S. (1945). The theory of sound / by Lord Rayleigh (2nd ed. originally published by Macmillan in 1894.). Dover Publications.

Chicago Style (17th ed.) Citation

Rayleigh, Robert John Strutt. The Theory of Sound / by Lord Rayleigh. 2nd ed. originally published by Macmillan in 1894. Dover Publications, 1945.

MLA (9th ed.) Citation

Rayleigh, Robert John Strutt. The Theory of Sound / by Lord Rayleigh. 2nd ed. originally published by Macmillan in 1894. Dover Publications, 1945.

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