Harwit, Martin <br/><br/>
Astrophysical concepts 

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 - New York  Wiley Eastern  1973 
 - xiv,561p.   
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<br/><br/><label>Subjects--Index Terms: </label>Astronomical physics  Physics, Astronomical  Astrophysics  Spectroscopy  black holes  Spectrum analysis  Astronomy  Physics  Stars 
<br/><br/><label>Dewey Class. No.: </label>523.03