Rutherford, Ernest. Radiations From Radioactive Substances / Textual Documents Ernest Rutherford, James Chadwick and C.D. Ellis. - 1st ed. / - Cambridge : At The University Press , 1930. - ix, 588p. : ill ; 22cm . Index Subjects--Index Terms: Physics Radiation Optics PG-Physics Dewey Class. No.: 535 / R 933 R