00624nam a2200193Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d 0-309-03334-9 IIA Library 52(047)"1980" NRC-2 United States. National Research Council 489 Astronomy and astrophysics for the 1980's National Research Council Washington National Academy Press 1983 xxi, 441p. Astronomy 80 Astronomy and astrophysics thesaurus Astrophysics 794 BK 8134 8134 0 0 0 0 BAN BAN GEN 1985-03-13 0 52(047)"1980"/ NRC-2 8972 2021-11-05 1985-03-13 BK 30.25