Whitford, P., & Montanari Stephens, E. (2008). Integrating environment into agriculture and forestry: Progress and prospects in Eastern Europe and Central Asia. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Whitford, Peter, و Emanuela Montanari Stephens. Integrating Environment into Agriculture and Forestry: Progress and Prospects in Eastern Europe and Central Asia. Washington: World Bank, 2008.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Whitford, Peter, و Emanuela Montanari Stephens. Integrating Environment into Agriculture and Forestry: Progress and Prospects in Eastern Europe and Central Asia. World Bank, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.