Template:AtWt TICE 1997

Rosman, K. J. R.; Taylor, P. D. P. (1998), "Isotopic Compositions of the Elements 1997", Pure and Applied Chemistry 70 (1): 217–35, doi:10.1351/pac199870010217, http://media.iupac.org/publications/pac/1998/pdf/7001x0217.pdf