TY  - BOOK
AU  - Ynion, Eugenio J.
TI  - Celestial Navigation 2
SN  - 9710306037
U1  - 623.89 
PY  - 2003///
CY  - Quezon City
PB  - Marta, Philippines
KW  - Navigation
KW  - Nautical Astronomy
N1  - Includes bibliography; 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
ER  -