00537nam a2200181Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 535.8 BRO Brown, Earle B. 2044 Optical instruments Earle B. Brown Brooklyn Chemical Publishing 1945 xii, 567p. Astronomy and astrophysics thesaurus Optical instruments 2045 Optics 2046 BK 946 946 0 0 0 0 BAN BAN GEN 0000-00-00 50.00 0 535.8/ BRO 979 2021-11-05 50.00 0000-00-00 BK Rs. 50.00