Cato, D. B., Sandoval, A. D., & Hopkins, F. E. (1980). Income and price effects on petroleum consumption: An international comparison : technical report. U.S. Dept. of Energy, Energy Information Administration, Assistant Administrator for Applied Analysis.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Cato, Derriel B., A. David Sandoval, و Frank E. Hopkins. Income and Price Effects on Petroleum Consumption: An International Comparison : Technical Report. Washington, D.C.: U.S. Dept. of Energy, Energy Information Administration, Assistant Administrator for Applied Analysis, 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Cato, Derriel B., et al. Income and Price Effects on Petroleum Consumption: An International Comparison : Technical Report. U.S. Dept. of Energy, Energy Information Administration, Assistant Administrator for Applied Analysis, 1980.