Ginsburg, N., & Berry, B. J. L. (1960). Essays on geography and economic development. University of Chicago.
Chicago-viite (17. p.)Ginsburg, Norton, ja Brian J. L. Berry. Essays on Geography and Economic Development. Chicago: University of Chicago, 1960.
MLA-viite (8. p.)Ginsburg, Norton, ja Brian J. L. Berry. Essays on Geography and Economic Development. University of Chicago, 1960.
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