World Health Organization. (2008). Organically produced foods. Rome: Food and Agriculture Organization of the United Nations.
শিকাগো স্টাইলে সাইটেশনWorld Health Organization. Organically Produced Foods. Rome: Food and Agriculture Organization of the United Nations, 2008.
এমএলএ সাইটেশনWorld Health Organization. Organically Produced Foods. Rome: Food and Agriculture Organization of the United Nations, 2008.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.