Lorenzen, H., Johnstone, D., Bullard, D., & Zunt, J. (1993). Farming with Nature: For an ecologically and socially sustainable agricultural reform. Brussels: The Green Group in the European Parliament.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Lorenzen, Hannes, Diana Johnstone, Diana Bullard, و Jennifer Zunt. Farming with Nature: For an Ecologically and Socially Sustainable Agricultural Reform. Brussels: The Green Group in the European Parliament, 1993.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Lorenzen, Hannes, et al. Farming with Nature: For an Ecologically and Socially Sustainable Agricultural Reform. Brussels: The Green Group in the European Parliament, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.