Pure Appl. Chem., 1972, Vol. 30, No. 3-4, pp. 637-650
http://dx.doi.org/10.1351/pac197230030637
Atomic Weights of the Elements 1971
First page:
Pure Appl. Chem., 1972, Vol. 30, No. 3-4, pp. 637-650
http://dx.doi.org/10.1351/pac197230030637