18 books • 6 series
The Philosophical Writings of Niels Bohr, Volume I (Najafizadeh.Org Philosophy of Science, #12)
Atomphysik und menschliche Erkenntnis, Band I (Najafizadeh.Org Philosophy of Science, #9)
On the Quantum Theory of Line-Spectra, Vol. 2: On the Hydrogen Spectrum (Classic Reprint)
The Theory of Spectra and Atomic Constitution: Three Essays (Large Text Classic Reprint)