Παραπομπή APA

Geddes, P. City deterioration and the need of city survey. Philadelphia, PA: The American Academy of Arts and Sciences.

Παραπομπή Chicago Style

Geddes, Patrick. City Deterioration and the Need of City Survey. Philadelphia, PA: The American Academy of Arts and Sciences.

Παραπομπή MLA

Geddes, Patrick. City Deterioration and the Need of City Survey. Philadelphia, PA: The American Academy of Arts and Sciences.

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