National Research Council (U.S.). Committee on Sustainable Agriculture and the Environment in the Humid Tropics & ebrary, Inc. (1993). Sustainable agriculture and the environment in the humid tropics. National Academy Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)National Research Council (U.S.). Committee on Sustainable Agriculture and the Environment in the Humid Tropics و Inc ebrary. Sustainable Agriculture and the Environment in the Humid Tropics. Washington, D.C.: National Academy Press, 1993.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)National Research Council (U.S.). Committee on Sustainable Agriculture and the Environment in the Humid Tropics و Inc ebrary. Sustainable Agriculture and the Environment in the Humid Tropics. National Academy Press, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.