Cita APA

Ryland, V. W., & Ryland, V. W. (1978). Public transit risk management: A handbook for public transit executives. Washington: U.S. Dept of Transportation, Urban Mass Transportation Administration.

Citación estilo Chicago

Ryland, V. Wallace, y V. Wallace Ryland. Public Transit Risk Management: A Handbook for Public Transit Executives. Washington: U.S. Dept of Transportation, Urban Mass Transportation Administration, 1978.

Cita MLA

Ryland, V. Wallace, y V. Wallace Ryland. Public Transit Risk Management: A Handbook for Public Transit Executives. Washington: U.S. Dept of Transportation, Urban Mass Transportation Administration, 1978.