Budlong, John P., Musquodobolt Harbour, Nova Scotia, — Sky and Sextant: practical celestial navigation.

NY, Van-Nostrand Reinhold, (1978). 2nd ed 1st ptg. VG in VG DJ. Revised, expanded, and updated edition of a highly acclaimed guide to celestial navigation. A simple, basic and thorough. manual for finding position without expensive gadgets or complicated math. For anyone who goes boating for pleasure, either cruising or racing, in a dinghy or larger vessel. How to determine position using only a sextant, a good watch, a set of tables, and addition and subtraction.