Byers, A., & Liu, P. (2008). Value-adding standards in the North American food market: Trade opportunities in certified products for developing countries.
Lua i Stíl Chicago (17ú heag.)Byers, Alice, agus Pascal Liu. Value-adding Standards in the North American Food Market: Trade Opportunities in Certified Products for Developing Countries. 2008.
Lua MLA (9ú heag.)Byers, Alice, agus Pascal Liu. Value-adding Standards in the North American Food Market: Trade Opportunities in Certified Products for Developing Countries. 2008.
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