United States. Urban Transportation Administration, General Motors Corporation. Research Laboratories. Transportation Research Dept, Canty, E. T., & Wallace, J. P. (1968). New systems implementation study: Final report. Clearinghouse for Federal Scientific and Technical Information.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Urban Transportation Administration, General Motors Corporation. Research Laboratories. Transportation Research Dept, Eugene T. Canty, و James P. Wallace. New Systems Implementation Study: Final Report. Springfield, Va.: Clearinghouse for Federal Scientific and Technical Information, 1968.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. Urban Transportation Administration, et al. New Systems Implementation Study: Final Report. Clearinghouse for Federal Scientific and Technical Information, 1968.