The admiralty manual of navigation : vol. 2 : astro navigation 

 - 11th ed. 
 - Lonon  The Nautical Institute  2018 
 - 200+ 
<br/><br/><label>ISBN: </label>9781906915582 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Practical sights : planning, takking reducing and plotting<br/>Meridian passage and Polaris<br/>Refraction, dip and mirage
<br/><br/><label>Dewey Class. No.: </label>623.89  / NAU