Bohr, Niels, 1885-1962.
The unity of knowledge [sound recording] : third John Franklin Carlson Lecture at Iowa State University, 1957 December 5.
Philosophy and science.
Sound recordings lcgft
American Institute of Physics.
AIP-ICOS
American Institute of Physics. Niels Bohr Library & Archives. One Physics Ellipse, College Park, MD 20740, USA