APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

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