Home › Authors › Mass.) Conference on X-ray Astronomy (1960 Cambridge 👤 Mass.) Conference on X-ray Astronomy (1960 Cambridge 1 book Books by Mass.) Conference on X-ray Astronomy (1960 Cambridge Proceedings of the Conference Proceedings of the Conference on X-ray Astronomy at Smithsonian Astrophysical Observatory, Cambridge, Massachusetts, on May 20, 1960 1961