Exercises in practical astronomy using photographs: with solutions by Brück, Mary Teresa 0 Type: Book
The case for Mars: the plan to settle the Red Planet and why we must by Zubrin, Robert, Wagner, Richard, Clarke, Arthur C. 0 Type: Book
Sextants at Greenwich: a catalogue of the mariner's quadrants, mariner's astrolabes, cross-staffs, backstaffs… by Dunn, Richard, Mörzer Bruyns, W.F.J 0 Type: Book
