Hennes, R. G., & Ekse, M. (1969). Fundamentals of transportation engineering (2nd ed.). McGraw-Hill.
Chicago Style aipamenaHennes, Robert G., and Martin Ekse. Fundamentals of Transportation Engineering. 2nd ed. New York: McGraw-Hill, 1969.
MLA aipamenaHennes, Robert G., and Martin Ekse. Fundamentals of Transportation Engineering. 2nd ed. McGraw-Hill, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.