Cita APA (7th ed.)

Byers, A., & Liu, P. (2008). Value-adding standards in the North American food market: Trade opportunities in certified products for developing countries.

Cita Chicago (17th ed.)

Byers, Alice, i Pascal Liu. Value-adding Standards in the North American Food Market: Trade Opportunities in Certified Products for Developing Countries. 2008.

Cita MLA (9th ed.)

Byers, Alice, i Pascal Liu. Value-adding Standards in the North American Food Market: Trade Opportunities in Certified Products for Developing Countries. 2008.