Jefferys,  william.  H.  Robbins,  R  Robert. <br/><br/>
Discovering   astronomy.  x 

 - x 
 - N, Y.  Wiley,  1981 
 - xi, 466p 
<br/><br/>
<br/><br/><label>ISBN: </label>x  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy. Astronomy, 
<br/><br/><label>Dewey Class. No.: </label>520/JED