(1994). Structural Steel Designer's Handbook Roger L. Backenbrough, Frederick's Merritt. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Structural Steel Designer's Handbook Roger L. Backenbrough, Frederick's Merritt. McGraw-Hill, 1994.
Lua MLA (8ú heag.)Structural Steel Designer's Handbook Roger L. Backenbrough, Frederick's Merritt. McGraw-Hill, 1994.
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