Nelson, G. C., & Gray, D. A. (1997). The use of spatial analysis at the World Bank. Washington, D.C.: World Bank.
Citación estilo ChicagoNelson, Gerald C., y David A. Gray. The Use of Spatial Analysis At the World Bank. Washington, D.C.: World Bank, 1997.
Cita MLANelson, Gerald C., y David A. Gray. The Use of Spatial Analysis At the World Bank. Washington, D.C.: World Bank, 1997.
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