(1997). United Nations conference on trade and development: Handbook of world mineral trade statistics 1990 - 1995. New York: United Nations.
Styl cytowania ChicagoUnited Nations Conference On Trade and Development: Handbook of World Mineral Trade Statistics 1990 - 1995. New York: United Nations, 1997.
Styl cytowania MLAUnited Nations Conference On Trade and Development: Handbook of World Mineral Trade Statistics 1990 - 1995. New York: United Nations, 1997.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..