00561nam a2200181Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 0-446-93677-4 IIA Library 524.882 SUL Sullivan, Walter 12587 Black holes the edge of space, the end of time Walter Sullivan U.S.A A Warner Communications 1979 350p. Astronomy and astrophysics thesaurus Black holes 7728 BK 7344 7344 0 0 0 0 BAN BAN GEN 1983-05-09 0 524.882/ SUL 8151 2021-11-05 1983-05-09 BK £ 2.20