Lindsay, R. B., & Mayer, J. R. v. (1973). Julius Robert Mayer, prophet of energy ([1st ed.].). Pergamon Press.

Lindsay, R. Bruce, and Julius Robert von Mayer. Julius Robert Mayer, Prophet of Energy. [1st ed.]. Oxford, New York: Pergamon Press, 1973.

Lindsay, R. Bruce, and Julius Robert von Mayer. Julius Robert Mayer, Prophet of Energy. [1st ed.]. Pergamon Press, 1973.