SMITH, R. C. (1986). Principles and practices of heavy constructiuon. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)SMITH, Ronald C. Principles and Practices of Heavy Constructiuon. Prentice Hall, 1986.
Lua MLA (8ú heag.)SMITH, Ronald C. Principles and Practices of Heavy Constructiuon. Prentice Hall, 1986.
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