Higgins Benjamin, & Downing Higgins Jean. (1979). Economic Development of a Small Planet (In lần thứ 1.). New York.: Norton.
Παραπομπή Chicago StyleHiggins Benjamin, και Downing Higgins Jean. Economic Development of a Small Planet. In lần thứ 1. New York.: Norton, 1979.
Παραπομπή MLAHiggins Benjamin, και Downing Higgins Jean. Economic Development of a Small Planet. In lần thứ 1. New York.: Norton, 1979.
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