Wallace, Neil2009-10-222009-10-221971-06Wallace, N. (1971), "An Approach to the Study of Money and Nonmoney Exchange Structures", Discussion Paper No. 6, Center for Economic Research, Department of Economics, University of Minnesota.https://hdl.handle.net/11299/54247en-USAn Approach to the Study of Money and Nonmoney Exchange StructuresWorking Paper