00516nam a2200181Ia 4500003000900000008004100009020001600050040001600066080001700082100001400099245004800113260002900161300001300190490003200203650002400235650003200259650004300291IN-BaIIA211028s9999    xx            000 0 eng d  a236-15453-2  cIIA Library  a52(091)bHEY  aHey, J. S 4aThe evolution of radio astronomycJ. S. Hey  aLondonbElek Booksc1973  ax, 214p.  aHistories of science series  a Radio astronomy   a Radio astronomy - history  aAstronomy and astrophysics thesaurus