000 00559nam a2200181Ia 4500
003 IN-BaIIA
008 211028s9999 xx 000 0 eng d
040 _cIIA Library
080 _a520.9
_bBAU
100 _aBausch
_912409
245 0 _aCertified precision diffraction gratings
_cBausch and Lomb
260 _aNew York
_bBausch and Lomb
_c1981
300 _ai, 22p.
650 _aAstronomical instrumentation
_93629
650 _aAstronomy and astrophysics thesaurus
700 _aBausch
_912409
942 _cBK
999 _c7250
_d7250