Isard, W. (1960). Location and space-economy ;: A general theory relating to industrial location, market areas, land use, trade, and urban structure. New York: Wiley.
Παραπομπή Chicago StyleIsard, Walter. Location and Space-economy ;: A General Theory Relating to Industrial Location, Market Areas, Land Use, Trade, and Urban Structure. New York: Wiley, 1960.
Παραπομπή MLAIsard, Walter. Location and Space-economy ;: A General Theory Relating to Industrial Location, Market Areas, Land Use, Trade, and Urban Structure. New York: Wiley, 1960.
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