00948nam a2200217Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 520.34(063) IRW National Science Foundation Astronomical Photoelectric Conference Arizona 1953 Aug. 31 - Sept. 1 12795 Astronomical photoelectric proceedings of the National Science Foundation Astronomical Photoelectric Conference held at Lowell Observatory Flagstaff, Arizona August 31 - September 1, 1953 edited by John B. Irwin Arizona Lowell Observatory 1953 122p. Donated by Mrs. Bappu Astronomical Photometry Astronomy and Astrophysics Thesaurus Photoelectric Photometry 2971 Irwin, John B ed. 12796 National Science Foundation  12797 BK 7521 7521 0 0 0 0 BAN BAN GEN 1983-07-15 0 520.34(063)/ IRW 8333 2021-11-05 1983-07-15 BK