Clark, M., & Tilman, D. (2017). Comparative analysis of environmental impacts of agricultural production systems, agricultural input efficiency, and food choice. IOP Publishing.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Clark, M., و D. Tilman. Comparative Analysis of Environmental Impacts of Agricultural Production Systems, Agricultural Input Efficiency, and Food Choice. IOP Publishing, 2017.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Clark, M., و D. Tilman. Comparative Analysis of Environmental Impacts of Agricultural Production Systems, Agricultural Input Efficiency, and Food Choice. IOP Publishing, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.