Conference on X-Ray Astronomy. Smithsonian Astrophysical Observatory (Cambridge, Massachusetts): 1960 May 20. Proceedings of the conference on x-ray astronomy at Smithsonian Astrophysical Observatory, 1960.

Conference on X-Ray Astronomy. Smithsonian Astrophysical Observatory (Cambridge, Massachusetts): 1960 May 20.

Proceedings of the conference on x-ray astronomy at Smithsonian Astrophysical Observatory, 1960.

Smithsonian Astrophysical Observatory

X-ray astronomy

X-ray astronomy -- Congresses.

AIP-ICOS

American Institute of Physics. Niels Bohr Library & Archives. One Physics Ellipse, College Park, MD 20740, USA