Cork, James M. Radioactivity and nuclear physics / by James M. Cork. - New York : D. Van nastrand, 1947 - x, 313p. : fig. ; 22x15 cm. Includes reference, appendix and index. ISBN: : Rs. 22.00 Subjects--Topical Terms: NATURAL RADIOACTIVITY Dewey Class. No.: 539.752 / COR-RAD