Hankins, Thomas L. (13 September 1974). "A Principle of Physics: The Discovery of the Conservation of Energy . Yehuda Elkana. Harvard University Press, Cambridge, Mass., 1974. x, 214 pp. $8.50". Science. 185 (4155): 937. doi:10.1126/science.185.4155.937.a. S2CID239867338.
Hankins, Thomas L. (13 September 1974). "A Principle of Physics: The Discovery of the Conservation of Energy . Yehuda Elkana. Harvard University Press, Cambridge, Mass., 1974. x, 214 pp. $8.50". Science. 185 (4155): 937. doi:10.1126/science.185.4155.937.a. S2CID239867338.