00966nam a2200217Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 52(082.2) REC Symposium on Recent Advances in Observational Astronomy Mexico 1979 Sept. 18-19 13204 Recent advances in observational astronomy symposium on recent advances in observational astronomy Ensenada, Mexico, 18-19 September 1979 edited by Harold L. Johnson and Christine Allen Mexico Universidad Nacional Autonoma De Mexico 1981 165p. Universidad Nacional Autonoma de Mexico Astronomy and astrophysics thesaurus Astronomy-Observations 10189 Allen, Christine, ed. 13205 Johnson, Harold L., ed. 13206 Universidad Nacional Autonoma De Mexico 12383 BK 7828 7828 0 0 0 0 BAN BAN GEN 1984-01-10 0 52(082.2)/ REC 8646 2021-11-05 1984-01-10 BK