TY  - BOOK
AU  - Somerville, Phil
AU  - Somerville, Phil
TI  - THE PRACTICAL GUIDE TO CELESTIAL NAVIGATION :  STEP-BY-STEP INSTRUCTIONS FOR WHEN YOU'VE LOST THE PLOT    
SN  - 9781472987587
AV  - VK555 .S6961 2021 
U1  - VK555 .S6961 2021 
PY  - 2021///
CY  - London
PB  - Adlard Coles
KW  - Nautical astronomy
ER  -