Putnam, G. H. (1897). Books and their makers during the middle ages: A study of the conditions of the production and distribution of literature from the fall of the Roman empire to the close of the seventeenth century. G.P. Putnam's sons.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPutnam, George Haven. Books and Their Makers During the Middle Ages: A Study of the Conditions of the Production and Distribution of Literature from the Fall of the Roman Empire to the Close of the Seventeenth Century. New York ; London: G.P. Putnam's sons, 1897.
एमएलए (8वां संस्करण) प्रशस्ति पत्रPutnam, George Haven. Books and Their Makers During the Middle Ages: A Study of the Conditions of the Production and Distribution of Literature from the Fall of the Roman Empire to the Close of the Seventeenth Century. G.P. Putnam's sons, 1897.