Greene, J.C.; Burke, J.G. (1978). "The Science of Minerals in the Age of Jefferson". Transactions of the American Philosophical Society. New. 68 (4): 39. doi:10.2307/1006294. JSTOR1006294. (article pages: 1–113)
Greene, J.C.; Burke, J.G. (1978). "The Science of Minerals in the Age of Jefferson". Transactions of the American Philosophical Society. New. 68 (4): 39. doi:10.2307/1006294. JSTOR1006294. (article pages: 1–113)