Helmholtz, H. L. F., Ellis, A. J., & Margenau, H. (1954). On the sensations of tone as a physiological basis for the theory of music (2nd English ed., translated, thoroughly rev. and corrected, rendered conformal to the 4th (and last) German ed. of 1877, with numerous additional notes and a new additional appendix bringing down information to 1885, and especially adapted to the use of music students.). New York: Dover Publications.

Helmholtz, Hermann L. F., Alexander John Ellis, and Henry Margenau. On the Sensations of Tone As a Physiological Basis for the Theory of Music. 2nd English ed., translated, thoroughly rev. and corrected, rendered conformal to the 4th (and last) German ed. of 1877, with numerous additional notes and a new additional appendix bringing down information to 1885, and especially adapted to the use of music students. New York: Dover Publications, 1954.

Helmholtz, Hermann L. F., Alexander John Ellis, and Henry Margenau. On the Sensations of Tone As a Physiological Basis for the Theory of Music. 2nd English ed., translated, thoroughly rev. and corrected, rendered conformal to the 4th (and last) German ed. of 1877, with numerous additional notes and a new additional appendix bringing down information to 1885, and especially adapted to the use of music students. New York: Dover Publications, 1954.