This half century : 50 poems from 1900 to 1949 /

Mathematics of computation 1943-1993 : a half-century of computational mathematics /

France and England in North America / by Parkman, Francis, 1823-1893

Table of Contents: “…Count Frontenac and New France under Louis XIV. A half-century of conflict. Montcalm and Wolfe…”

The evolution of the international monetary system : historical reappraisal and future perspectives / by Triffin, Robert, 1911-1993

Table of Contents: “…The mith and realities of the so-called gold standard -- 2. A half century of international monetary anrachy: 1914-1964 -- 3. …”
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Economic thought since Keynes : a history and dictionary of major economists / by Beaud, Michel

Trade blocs : alternative approaches to analysing preferential trade agreements /