APA (7th ed.) Citation

Blumentritt, C. W. (1981). Guidelines for selection of ramp control systems. Transportation Research Board, National Research Council.

Chicago Style (17th ed.) Citation

Blumentritt, C. W. Guidelines for Selection of Ramp Control Systems. Washington, D.C: Transportation Research Board, National Research Council, 1981.

MLA (9th ed.) Citation

Blumentritt, C. W. Guidelines for Selection of Ramp Control Systems. Transportation Research Board, National Research Council, 1981.