Somerville, Phil THE PRACTICAL GUIDE TO CELESTIAL NAVIGATION STEP-BY-STEP INSTRUCTIONS FOR WHEN YOU'VE LOST THE PLOT - London Adlard Coles, 2021 - Hard Pack 152 p.: color ill. 28 cm ISBN: 9781472987587 Subjects--Topical Terms: Nautical astronomy LC Class. No.: VK555 .S6961 2021 Dewey Class. No.: VK555 .S6961 2021 National Library of Medicine Call No.: VK555 .S6961 2021