APA (7th ed.) Citation

Watson, P. L., & Holland, E. P. (1978). Relieving traffic congestion: The Singapore area license scheme.

Chicago Style (17th ed.) Citation

Watson, Peter L., and Edward P. Holland. Relieving Traffic Congestion: The Singapore Area License Scheme. Washington, 1978.

MLA (9th ed.) Citation

Watson, Peter L., and Edward P. Holland. Relieving Traffic Congestion: The Singapore Area License Scheme. 1978.