Ships and Shipping in the North Sea and Atlantic 1400¿1800Richard W. Unger · First published 1997Open the Tome
Rise of China and India - Impacts, Prospects and ImplicationsRichard W. Unger, Amelia U. Santos-Paulino, Guanghua Wan · First published 2010Open the Tome
Cartography in antiquity and the Middle AgesRichard J. A. Talbert, Richard W. Unger · First published 2008Open the Tome
War at Sea in the Middle Ages and the RenaissanceJohn B. Hattendorf, Richard W. Unger · First published 2003Open the Tome
Cogs, caravels and galleonsRobert Gardiner, Richard W. Unger · First published 1994 · Latest edition 1999Open the Tome
Studies in Medieval and Renaissance HistoryJ. A. S. Evans, Richard W. Unger · First published 1990Open the Tome
Nautical archaeology, progress and public responsibilityRichard W. Unger · First published 1984Open the Tome