Roy, A E <br/><br/>
Astronomy: Principles and practice 

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 - Bristol  Adam Hilger  1977 
 - xv,342p.   
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<br/><br/><label>Subjects--Index Terms: </label>Astronomy  black holes  Asteroids  Astrology  Astrophysics  Comets  Meteorites  Meteors  Planetariums  Planets  Galaxies  Constellations  pulsars  Solar system  Physical science  Universe 
<br/><br/><label>Dewey Class. No.: </label>52