Duffett-Smith, Peter <br/><br/>
Practical astronomy with your calculator 
Peter Duffett-Smith                                        
 - 3rd ed. 
 - Cambridge  Cambridge University Press  1979 
 - xiii, 184p. 
<br/><br/><label>ISBN: </label>0-521-35699-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy<br/>Astronomy and astrophysics thesaurus<br/>Calculators
<br/><br/><label>Universal Decimal Class. No.: </label>12:21.0  / DUF