The collapsing universe /
Asimov, Isaac, 1920-1992.,
The collapsing universe / [print] by Isaac Asimov. - New York : Walker, (c)1977. - 204 pages ; 25 cm.
9780802704863
76053639
Black holes (Astronomy)
Astronomy.
QB843 QB843.A832.C655 1977
The collapsing universe / [print] by Isaac Asimov. - New York : Walker, (c)1977. - 204 pages ; 25 cm.
9780802704863
76053639
Black holes (Astronomy)
Astronomy.
QB843 QB843.A832.C655 1977