APA引文

World Health Organization. (2008). Organically produced foods. Rome: Food and Agriculture Organization of the United Nations.

Trích dẫn kiểu Chicago

World Health Organization. Organically Produced Foods. Rome: Food and Agriculture Organization of the United Nations, 2008.

MLA引文

World Health Organization. Organically Produced Foods. Rome: Food and Agriculture Organization of the United Nations, 2008.

警告：這些引文格式不一定是100％准確.