Princeton Dictionary of BuddhismBuswell, Robert E. Jr, Lopez, Donald S. Jr · First published 2013 · Latest edition 2014Open the Tome
Medieval Trade in the Mediterranean WorldRobert S. Lopez · First published 1961 · Latest edition 1990Open the Tome
The commercial revolution of the Middle Ages, 950-1350Robert S. Lopez · First published 1971Open the Tome
Centri e vie di irradiazione della civiltà nell'alto medioevo, 18-23 aprile 1963Robert S. Lopez · First published 1964Open the Tome
Les Influences Orientales et l'éveil économique de l'OccidentRobert S. Lopez · First published 1954Open the Tome
