GAYLORD, E. H. (1972). Design Of Steel Structures Edwin H. Gaylord And Charles N. Gaylord. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)GAYLORD, Edwind H. Design Of Steel Structures Edwin H. Gaylord And Charles N. Gaylord. McGraw-Hill, 1972.
Lua MLA (8ú heag.)GAYLORD, Edwind H. Design Of Steel Structures Edwin H. Gaylord And Charles N. Gaylord. McGraw-Hill, 1972.
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