Ynion, Eugenio J. <br/><br/>
Celestial Navigation 2/ 
Eugenio J. Ynion 
 - Quezon City  Marta, Philippines  2003 
 - v, 121 pages  figures, tables   22.5 cm 
<br/><br/>Includes bibliography 
<br/><br/>Preface v -- Chapter 1. Amplitudes 1 -- Chapter 2. Twilight 19 -- Chapter 3. Observations for latitude 23 -- Chapter 4. Celestial lines of position 58 -- Chapter 5. Great circle sailing 81 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9710306037 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Navigation.<br/>Nautical Astronomy.
<br/><br/><label>Dewey Class. No.: </label>623.89  / Y53c