000 00509nam a2200169Ia 4500
003 IN-BaIIA
008 211028s9999 xx 000 0 eng d
040 _cIIA Library
080 _a535.8(082.1)
_bOPT
245 0 _aOptical instruments 1950
_bproceedings of the London Conference on Optical Instruments 1950
260 _aLondon
_bChapman and Hall
_c1951
300 _a[various pagings.]
650 _aAstronomy and astrophysics thesaurus
650 _aOptical instruments
650 _aOptics
942 _cBK
999 _c1297
_d1297