APA (7th ed.) Citation

Gray, G. E., & Hoel, L. A. (1979). Public transportation: Planning, operations, and management. Prentice-Hall.

Chicago Style (17th ed.) Citation

Gray, George E., and Lester A. Hoel. Public Transportation: Planning, Operations, and Management. Englewood Cliffs, N.J: Prentice-Hall, 1979.

MLA (9th ed.) Citation

Gray, George E., and Lester A. Hoel. Public Transportation: Planning, Operations, and Management. Prentice-Hall, 1979.