Holleb, D. B. (1969). Social and economic information for urban planning. Chicago: Center for Urban Studies of the University of Chicago.
Παραπομπή Chicago StyleHolleb, Doris B. Social and Economic Information for Urban Planning. Chicago: Center for Urban Studies of the University of Chicago, 1969.
Παραπομπή MLAHolleb, Doris B. Social and Economic Information for Urban Planning. Chicago: Center for Urban Studies of the University of Chicago, 1969.
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