APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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