Tonias, D. E. (2007). Bridge engineering. New York: McGraw Hill.
Chicago Style aipamenaTonias, Demetrios E. Bridge Engineering. New York: McGraw Hill, 2007.
MLA aipamenaTonias, Demetrios E. Bridge Engineering. New York: McGraw Hill, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.