Lua APA (7ú heag.)

Não informado. (1979). Concrete International: Design and construction. American Concrete Institute.

Lua i Stíl Chicago (17ú heag.)

Não informado. Concrete International: Design and Construction. Detroit, Mich: American Concrete Institute, 1979.

Lua MLA (8ú heag.)

Não informado. Concrete International: Design and Construction. American Concrete Institute, 1979.

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