Hawking, Stephen
Black Holes and baby universes: and other essays - London Bantam Books 1993 - xv, 172 p.
9780553406634
Black Holes-astronomy
520 / HAW
Black Holes and baby universes: and other essays - London Bantam Books 1993 - xv, 172 p.
9780553406634
Black Holes-astronomy
520 / HAW