00538nam a2200181Ia 4500 IN-BaIIA 20250701120314.0 211028s9999 xx 000 0 eng d IIA Library 52(083) OBR Obrecht, A . 979 Determination de la hora(in French) A. Obrecht Chile, Imprenta litografia universo 1907 293p. Astronomy and Astrophysics Thesaurus Tables BK ddc 428 428 0 0 ddc 0 0 BAN BAN GEN 0000-00-00 0 52(083)/ OBR 426 2021-11-05 0000-00-00 BK