Kaufmann, William J.
The Cosmic frontiers of general relativity / Layman's guide to the new universe William J. Kaufmann. - Harmondsworth, England : Penguin, [197-?] - x, 305 p. : ill., ports. ; 23 cm.
Includes index. Cover subtitle : A layman's guide to the new universe.
Astronomy.
General relativity (Physics)
521 / KAC
The Cosmic frontiers of general relativity / Layman's guide to the new universe William J. Kaufmann. - Harmondsworth, England : Penguin, [197-?] - x, 305 p. : ill., ports. ; 23 cm.
Includes index. Cover subtitle : A layman's guide to the new universe.
Astronomy.
General relativity (Physics)
521 / KAC