2 books
The Absorption Spectra of Solutions of Certain Salts of Cobalt, Nickel, Copper, Iron, Chromium, Neodymium, Praseodymium, and Erbium in Water, Methyl Alcohol, Ethyl Alcohol, and Acetone, and in Mixtures of Water with the Other Solvents
The Absorption Spectra of Solutions of Certain Salts of Cobalt, Nickel, Copper, Iron, Chromium, Neod