Hansen, N. M. (1976). Improving access to economic opportunity: Nonmetropolitan labor markets in an urban society. Ballinger Pub. Co.
Chicago Style (17. basım) AtıfHansen, Niles M. Improving Access to Economic Opportunity: Nonmetropolitan Labor Markets in an Urban Society. Cambridge, Mass: Ballinger Pub. Co, 1976.
MLA (9th ed.) AtıfHansen, Niles M. Improving Access to Economic Opportunity: Nonmetropolitan Labor Markets in an Urban Society. Ballinger Pub. Co, 1976.
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