Peter Duffett-Smith <br/><br/>
Practical astronomy with your calculator 
Peter Duffett-Smith 
 - 2nd 
 - New York  Cambridge   19831 
 -  188p 
<br/><br/><br/>eng 
<br/><br/><label>ISBN: </label>0-521-29636-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>520  / PEP