Roy A E <br/><br/>
Astronomy: principles and practice 
Roy A E; Clarke D 
 - 2 
 - Bristol  Adam Hilger          1982 
 - xv,342p.  cm. 
<br/><br/><label>Standard No.: </label>25027 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>B9, L73;M2