Rockey, K. C., & Evans, H. R. (1981). Design of Steel Bridges. Granada.
Chicago Style aipamenaRockey, K. C., and H. R. Evans. Design of Steel Bridges. London: Granada, 1981.
MLA aipamenaRockey, K. C., and H. R. Evans. Design of Steel Bridges. Granada, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.