Cita APA (7a ed.)

Hay, W. W. (1961). An introduction to transportation engineering. Wiley.

Cita Chicago Style (17a ed.)

Hay, William W. An Introduction to Transportation Engineering. New York: Wiley, 1961.

Cita MLA (8a ed.)

Hay, William W. An Introduction to Transportation Engineering. Wiley, 1961.