00632nam a2200193Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 520.1 JON Jones, Bessie Zaban 7273 The Harvard college observatory the first four directorships, 1839-1919 Bessie Zaban Jones and Lyle Giffond Boyd Cambridge Harvard University Press 1971 xi, 495p. Astronomy and astrophysics thesaurus Harvard college observatory 7613 Observatories Byod, Lyle Gifford 7614 BK 4339 4339 0 0 0 0 BAN BAN GEN 1973-11-20 115.35 0 520.1/ JON 4844 2021-11-05 115.35 1973-11-20 BK Rs. 115.35