TY - BOOK T1 - Extinct natural radioactivity :possibilities and potentialities / DA - 1956. CY - New York : AU - Kohman, Truman P. CN - Q11 CN - Q11 PB - New York Academy of Sciences, PP - New York : PY - 1956. ID - 63788 KW - Radioactivity. TI - Extinct natural radioactivity :possibilities and potentialities / ER -