Hansen, N. M. (1978). Human settlement systems: International perspectives on structure, change and public policy. Ballnger Pub.
Chicago-referens (17:e uppl.)Hansen, Niles M. Human Settlement Systems: International Perspectives on Structure, Change and Public Policy. Cambridge, Mass: Ballnger Pub, 1978.
MLA-referens (9:e uppl.)Hansen, Niles M. Human Settlement Systems: International Perspectives on Structure, Change and Public Policy. Ballnger Pub, 1978.
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