Duffett-Smith, Peter. <br/><br/>
Practical astronomy with your calculator / 
Peter Duffett-Smith. 
 - 3rd ed. 
 - Cambridge :  Cambridge University Press,  1988. 
 - 188 p. :  ill. ;  24 cm. 
<br/><br/> Includes indexes 
<br/><br/><label>ISBN: </label>0521284112 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--Problems, exercises, etc.<br/>Calculating--machines.<br/>Calculators.