APA (7th ed.) Zitazioa

International Monetary Fund. Real Sector Division & ebrary, Inc. (1993). A Guide to Direction of trade statistics. International Monetary Fund.

Chicago Style (17th ed.) Zitazioa

International Monetary Fund. Real Sector Division eta Inc ebrary. A Guide to Direction of Trade Statistics. Washington, D.C.: International Monetary Fund, 1993.

MLA (9th ed.) Zitazioa

International Monetary Fund. Real Sector Division eta Inc ebrary. A Guide to Direction of Trade Statistics. International Monetary Fund, 1993.