Hänvisningar gällande denna post
APA-referensUnited Nations. Statistical Division. (2004). Central product classification (CPC): Version 1.1. United Nations.
Chicago-stil citatUnited Nations. Statistical Division. Central Product Classification (CPC): Version 1.1. New York [N.Y.]: United Nations, 2004.
MLA-referensUnited Nations. Statistical Division. Central Product Classification (CPC): Version 1.1. United Nations, 2004.
Harvard-stil citatUnited Nations. Statistical Division. 2004. Central product classification (CPC): Version 1.1. New York [N.Y.]: United Nations.
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