00656nam a2200205Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 0-12-635250-X IIA Library 524.83 SEG Segal, Irving Ezra 8679 Mathematical cosmology and extragalactic astronomy I. E. Segal New York Academic Press 1976 ix, 204p. Pure and applied mathematics: a series of monographs and textbooks; v. 68  Cosmology  8047  Galactic astronomy 8680 Astronomy and astrophysics thesaurus  1143 BK 4862 4862 0 0 0 0 BAN BAN GEN 1976-06-19 0 524.83/ SEG 5439 2021-11-05 1976-06-19 BK 22.5