APA (7e ed.) Bronvermelding

HAY, W. W. (1977). An introduction to transportation engineering (2.). John Wiley & Sons.

Chicago (17e ed.) Bronvermelding

HAY, WILLIAN WALTER. An Introduction to Transportation Engineering. 2. New York: John Wiley & Sons, 1977.

MLA (8e ed.) Bronvermelding

HAY, WILLIAN WALTER. An Introduction to Transportation Engineering. 2. John Wiley & Sons, 1977.

Let op: Deze citaties zijn niet altijd 100% accuraat.