000 00529nam a2200181Ia 4500
003 IN-BaIIA
008 211028s9999 xx 000 0 eng d
040 _cIIA Library
080 _a521.9
_bVAR
100 _aVarnum, William B.
_91235
245 0 _aDifferential refraction in positional astronomy
_cWilliam B. Varnum
260 _aNew York
_bCarnegie Institution of Washington
_c1922
300 _a50p
650 _aAstrometry
_91236
650 _aAstronomy and Astrophysics thesaurus
650 _aRefraction
_91237
942 _cBK
999 _c550
_d550