Elbehri, A., Segerstedt, A., & Liu, P. (2013). Biofuels and the sustainability challenge: A global assessment of sustainability issues, trends and policies for biofuels and related feedstocks. Trade and Markets Division, Food and Agriculture Organization of the United Nations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Elbehri, Aziz, Anna Segerstedt, و Pascal Liu. Biofuels and the Sustainability Challenge: A Global Assessment of Sustainability Issues, Trends and Policies for Biofuels and Related Feedstocks. Rome: Trade and Markets Division, Food and Agriculture Organization of the United Nations, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Elbehri, Aziz, et al. Biofuels and the Sustainability Challenge: A Global Assessment of Sustainability Issues, Trends and Policies for Biofuels and Related Feedstocks. Trade and Markets Division, Food and Agriculture Organization of the United Nations, 2013.