The atom and the Bohr theory of its structure : an elementary presentation

Holst, Helge, b. 1871 · 1923 · London ; Copenhagen : Gyldendal · 4 pictures

Atomic theory · Atomic structure · Bohr, Niels, 1885-1962

Internet Archive · Smithsonian Libraries and Archives · Public domain (published before 1931) · More from this library