00733nam a2200205Ia 4500003000900000008004100009020001800050040001600068080001500084100002800099245008900127260004800216300001400264650003400278650004100312650003000353942000700383999001700390952012000407IN-BaIIA211028s9999    xx            000 0 eng d  a0-521-38199-1  cIIA Library  a520.8bBIR  aBirney, D. Scott917589 0aObservational astronomycD. Scott  Birney                                             aCambridgebCambridge University Pressc1991  aix, 328p.  aAstronomical Techniques91786  aAstronomy and Astrophysics Thesaurus  aObserving Techniques9822  cBK  c10351d10351  00104070aBANbKODcGENd1992-04-24g820.75l0o520.8/ BIRp11261r2021-11-05v820.75w1992-04-24yBKGRs. 820.75