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APA-referensUnited Nations. Economic Commission for Europe. (2019). World Forum for Harmonization of Vehicle Regulations (WP.29): How it works, how to join it (Fourth edition.). United Nations.
Chicago-stil citatUnited Nations. Economic Commission for Europe. World Forum for Harmonization of Vehicle Regulations (WP.29): How It Works, How to Join It. Fourth edition. Geneva: United Nations, 2019.
MLA-referensUnited Nations. Economic Commission for Europe. World Forum for Harmonization of Vehicle Regulations (WP.29): How It Works, How to Join It. Fourth edition. United Nations, 2019.
Harvard-stil citatUnited Nations. Economic Commission for Europe. 2019. World Forum for Harmonization of Vehicle Regulations (WP.29): How it works, how to join it. Fourth edition. Geneva: United Nations.