Home › Authors › A. P. W. Williamson 👤 A. P. W. Williamson 3 books Books by A. P. W. Williamson Modern seamanship 1995 Text book of navigation and na Text book of navigation and nautical astronomy 1915 Magnetism, deviation of the co Magnetism, deviation of the compass, and compass adjustment for practical use and B.O.T. exams 1908
