00499nam a2200169Ia 4500003000900000008004100009040001600050080001200066100001700078245009500095260003000190300001000220500002700230650001400257650004100271650001700312IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a52bSTR  aStruve, Otto 0aAstronomy of the 20th centurycOtto Struve                                                  aNew YorkbMacmillanc1962  a544p.  aContains illustrations  aAstronomy  aAstronomy and Astrophysics Thesaurus  aAstrophysics