Παραπομπή APA

Hemmens, G. C. (1966). The structure of urban activity linkages. Chapel Hill, NC: Center for Urban Research and Regional Studies.

Παραπομπή Chicago Style

Hemmens, George C. The Structure of Urban Activity Linkages. Chapel Hill, NC: Center for Urban Research and Regional Studies, 1966.

Παραπομπή MLA

Hemmens, George C. The Structure of Urban Activity Linkages. Chapel Hill, NC: Center for Urban Research and Regional Studies, 1966.

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