Lua APA (7ú heag.)

Sivak, M. Energy-demand consequences of the recent geographical shift in the metropolitan population of the US. Cities. : the international journal of urban and regional planning.

Lua i Stíl Chicago (17ú heag.)

Sivak, Michael. "Energy-demand Consequences of the Recent Geographical Shift in the Metropolitan Population of the US." Cities. : The International Journal of Urban and Regional Planning .

Lua MLA (9ú heag.)

Sivak, Michael. "Energy-demand Consequences of the Recent Geographical Shift in the Metropolitan Population of the US." Cities. : The International Journal of Urban and Regional Planning, .

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