Ketchum, M. S. Structural engineers handbook: Data for the design and construction of steel bridges and buildigs.
Chicago Style aipamenaKetchum, Milo S. Structural Engineers Handbook: Data for the Design and Construction of Steel Bridges and Buildigs.
MLA aipamenaKetchum, Milo S. Structural Engineers Handbook: Data for the Design and Construction of Steel Bridges and Buildigs.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.