Παραπομπή APA
Higgins, B. H. (1968). Economic development: Problems,principles,and policies (Revised edition.). New York: Norton.
Παραπομπή Chicago StyleHiggins, Benjamin Howard. Economic Development: Problems,principles,and Policies. Revised edition. New York: Norton, 1968.
Παραπομπή MLAHiggins, Benjamin Howard. Economic Development: Problems,principles,and Policies. Revised edition. New York: Norton, 1968.
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