Cita APA (7th ed.)

Hay, W. W. (1961). An Introduction to tansportation engineering. John Wiley.

Cita Chicago (17th ed.)

Hay, William W. An Introduction to Tansportation Engineering. NewYork: John Wiley, 1961.

Cita MLA (9th ed.)

Hay, William W. An Introduction to Tansportation Engineering. John Wiley, 1961.