De Roover, Raymond Adrien Gresham on foreign : an essay on early English mercantilism with the text of Sir Thomas Gresham's memorandum : For the Understanding of the exchange - Cambridge : Harvard U P, 1949 - xiv, 348p. illus. port. facsims. 24cm. Subjects--Topical Terms: Foreign exchange Dewey Class. No.: 332.45 / DER