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Bills of exchange
Wickremeratne, Lakshman Y., (2001)
Money and the mechanism of exchange
Jevons, William Stanley, (1875)
Traditional exchange and modern markets
Belshaw, Cyril S., (1965)
Economic value and costs are subjective
Stringham, Edward Peter, (2010)
Commerce, markets, and peace : Richard Cobden's enduring lessons
Stringham, Edward Peter, (2004)
Introduction
Stringham, Edward Peter, (2005)