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:
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Pure Appl. Chem., 1972, Vol. 30, No. 3-4, pp. 637-650
http://dx.doi.org/10.1351/pac197230030637