توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

National Research Council (U.S.). Highway Research Board. (1973). Unionization in highway and State transportation departments: 3 reports prepared for the 52nd annual meeting. National Academy of Science - National Research Council.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

National Research Council (U.S.). Highway Research Board. Unionization in Highway and State Transportation Departments: 3 Reports Prepared for the 52nd Annual Meeting. Washington, D.C: National Academy of Science - National Research Council, 1973.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

National Research Council (U.S.). Highway Research Board. Unionization in Highway and State Transportation Departments: 3 Reports Prepared for the 52nd Annual Meeting. National Academy of Science - National Research Council, 1973.