Humphrey, D. (1995). Payment Systems. Principles, Practice and Improvements. Washington EE.UU.: The World Bank.
Citación estilo ChicagoHumphrey, David. Payment Systems. Principles, Practice and Improvements. Washington EE.UU.: The World Bank, 1995.
Cita MLAHumphrey, David. Payment Systems. Principles, Practice and Improvements. Washington EE.UU.: The World Bank, 1995.
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