توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Heaver, T. D., & Nelson, J. C. (1977). Railway pricing under commercial freedom: The Canadian experience. Centre for Transportation Studies, University of British Columbia.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Heaver, Trevor D., و James C. Nelson. Railway Pricing Under Commercial Freedom: The Canadian Experience. Vancouver: Centre for Transportation Studies, University of British Columbia, 1977.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Heaver, Trevor D., و James C. Nelson. Railway Pricing Under Commercial Freedom: The Canadian Experience. Centre for Transportation Studies, University of British Columbia, 1977.