. . "Foreign trade." . . "Nigeria." . . "Commercial policy." . . "External debt." . . "Since 1970" . . . . . . . . . . . . . . . "The Nigerian economy and the external sector" . "The Nigerian economy and the external sector"@en . . . . . . . . . . . . . . . . . . . "Außenwirtschaft." . . "International economic relations." . . "Wirtschaft." . . "Außenwirtschaft Nigeria." . . "1970-1995." . . "Foreign exchange." . . "Debt management." . . "Nigeria." . . "Nigeria" . "Balance of payments." . .