1. C.W. DeKock, Thermodynamic properties of selected transition metal sulphates and their hydrates, Information Circular 8910, U.S. Bur. Mines, 1982.
2. The NBS tables of chemical thermodynamic properties. Selected values for inorganic and C1 and C2 organic substances in SI units;Wagman;J. Phys. Chem. Ref. Data,1982
3. D.D. Wagman, W.H. Evans, V.B. Parker, I. Halow, S.M. Bailey, R.H. Schumm, Selected values of chemical thermodynamic properties. Tables for elements 35 through 53 in the standard order of arrangement, Technical Note 270–4, U.S. Nat. Bur. Stand., 1969.
4. The magnetic susceptibility of copper sulphate;Benzie;Proc. Phys. Soc. A,1951