Παραπομπή APA

Hennes, R. G., & Ekse, M. (1969). Fundamentals of transportation engineering (2nd ed.). McGraw-Hill.

Παραπομπή Chicago Style

Hennes, Robert G., και Martin Ekse. Fundamentals of Transportation Engineering. 2nd ed. New York: McGraw-Hill, 1969.

Παραπομπή MLA

Hennes, Robert G., και Martin Ekse. Fundamentals of Transportation Engineering. 2nd ed. McGraw-Hill, 1969.