@book{20191,
	author = {McClure, Donald S.},
	title = {Electronic spectra of molecules and ions in crystals :},
	publisher = {Academic Press, },
	year = {c1959.},
	series = {Solid state reprints.},
	address = {New York ; },
	note = {Pt. 1. Molecular crystals. -- Pt. 2. Spectra of ions in crystals.}
}