Roy, A. E.  1924-2012. <br/><br/>
Astronomy, principles and practice / 
A.E. Roy, D. Clarke. 
 - 2nd ed. 
 - Bristol :  A. Hilger,  1982. 
 - xv, 342 p. :  ill. ;  29 cm. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 332-333. 
<br/><br/><label>ISBN: </label>0852744633 0852744641 (pbk.) 
<br/><br/><label>LCCN: </label>82220358  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy.
<br/><br/><label>LC Class. No.: </label>QB43.2  / .R68 1982 
<br/><br/><label>Dewey Class. No.: </label>520