APA (7th ed.) Citation

Siegel, L. (1979). Policing urban mass transit systems. National Evaluation Program.

Chicago Style (17th ed.) Citation

Siegel, L. "Policing Urban Mass Transit Systems." National Evaluation Program 1979.

MLA (9th ed.) Citation

Siegel, L. "Policing Urban Mass Transit Systems." National Evaluation Program, 1979.

Warning: These citations may not always be 100% accurate.