World Health Organization. (2008). Organically produced foods. Rome: Food and Agriculture Organization of the United Nations.
Chicago-стиль цитированияWorld Health Organization. Organically Produced Foods. Rome: Food and Agriculture Organization of the United Nations, 2008.
MLA-цитированиеWorld Health Organization. Organically Produced Foods. Rome: Food and Agriculture Organization of the United Nations, 2008.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.