Batra, G., Kaufmann, D., & Stone, A. H. W. (2003). Investment climate around the world: Voices of the firms from the World Business Environment Survey. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Batra, Geeta, Daniel Kaufmann, و Andrew H. W. Stone. Investment Climate Around the World: Voices of the Firms from the World Business Environment Survey. Washington, D.C.: World Bank, 2003.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Batra, Geeta, et al. Investment Climate Around the World: Voices of the Firms from the World Business Environment Survey. World Bank, 2003.