United States. National Bureau of Standards, Parker, V. B., Wagman, D. D., Evans, W. H., & Rossini, F. D. (1971). Selected values of chemical thermodynamics properties: Tables for the alkaline earth elements (elements 92 through 97 in the standard order of arrangement). National Bureau of Standards.

United States. National Bureau of Standards, Vivian B. Parker, D. D. Wagman, William H. Evans, and Frederick D. Rossini. Selected Values of Chemical Thermodynamics Properties: Tables for the Alkaline Earth Elements (elements 92 Through 97 in the Standard Order of Arrangement). [Washington]: National Bureau of Standards, 1971.

United States. National Bureau of Standards, et al. Selected Values of Chemical Thermodynamics Properties: Tables for the Alkaline Earth Elements (elements 92 Through 97 in the Standard Order of Arrangement). National Bureau of Standards, 1971.