Vol. s4-21, Issue 126, 1906June 01, 1906 EDT
Radio-activity of Thorium Minerals and Salts
Radio-activity of Thorium Minerals and Salts
B. B. Boltwood,
Boltwood, B. B. (1906). Radio-activity of Thorium Minerals and Salts. American Journal of Science, s4-21(126), 415–426. https://doi.org/10.2475/ajs.s4-21.126.415