APA

Byers A., Giovannucci D. & Liu P. (2008). Value-adding standards in the North American food market: trade opportunities in certified products for developing countries. Rome: Food and Agriculture Organization of the United Nations.

Chicago

Byers Alice, Giovannucci Daniele and Liu Pascal. 2008. Value-adding standards in the North American food market: trade opportunities in certified products for developing countries. Rome: Food and Agriculture Organization of the United Nations.

Harvard

Byers A., Giovannucci D. and Liu P. (2008). Value-adding standards in the North American food market: trade opportunities in certified products for developing countries. Rome: Food and Agriculture Organization of the United Nations.

MLA

Byers Alice, Giovannucci Daniele and Liu Pascal. Value-adding standards in the North American food market: trade opportunities in certified products for developing countries. Rome: Food and Agriculture Organization of the United Nations. 2008.