Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (8th ed.)

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