* The Rise and Decline of the Medici Bank, 1397–1494 (1963)
* San Bernardino of Siena and Sant’Antonino of Florence: The Two Great Economic Thinkers of the Middle Ages (1967)
* Business, Banking, and Economic Thought in Late Medieval and Early Modern Europe: Selected Studies by Raymond de Roover (1974)
* Money, Banking, and Credit in Medieval Bruges: Italian Merchant-Bankers, Lombards, and Money-Changers, 1200–1500 (1978)
* Business, Banking, and Economic Thought in Late Medieval and Early Modern Europe (2nd ed., 1991)
* Capitalism and Competition: Essays on the Reformation, Renaissance, and Counter-Reformation (2007)
Articles
* "La formation et l'évolution de la doctrine économique de saint Thomas" in Mélanges de science religieuse (1939)
* "The Concept of 'Just Price': Theory and Economic Policy" in Journal of Economic History (1940)
* "Money and Banking in the Italian City States" in Explorations in Entrepreneurial History (1946)
* "New Interpretations of the History of Banking" in Journal of Political Economy (1948)
* "The Scholastic Doctrine of Usury" in Mediaeval Studies (1954)
* "The Commercial Revolution of the Thirteenth Century" in The Cambridge Economic History of Europe (1952)
* "The Medici Bank and the Florentine Economy in the Early Renaissance" in Studies in the Renaissance (1957)
* "The Bruges Money Market in the Fourteenth Century" in The Journal of Economic History (1960)
* "A Note on the Origin and Development of Double-Entry Bookkeeping" in The Journal of Accountancy (1961)
* "The Rise and Fall of the Médici Bank, 1397–1494" in Journal of Economic History (1963)
* "San Bernardino of Siena and Sant’Antonino of Florence: The Two Great Economic Thinkers of the Middle Ages" in The Journal of Political Economy (1967)
* "The Concept of the Just Price: Theory and Economic Policy" in Economic History Review (1968)
* "Business, Banking, and Economic Thought in Late Medieval and Early Modern Europe" in Journal of Economic History (1974)
* "Money, Banking, and Credit in Medieval Bruges: Italian Merchant-Bankers, Lombards, and Money-Changers, 1200–1500" in Speculum (1978)
* "Capitalism and Competition: Essays on the Reformation, Renaissance, and Counter-Reformation" in History of Political Economy (2007)
Editions
* Bernardino of Siena, De contractibus et usuris (1957)
* Antonino of Florence, The Summa theologica of St. Antoninus, Part II: "Morality" (1975)
* The Italian merchant bankers: documents from the Medici archive, 1397-1402 (1978)