NAWY, E. G. (1989). Prestressed Concrete A Fundamental Approach Edward G. Nawy. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)NAWY, Edward G. Prestressed Concrete A Fundamental Approach Edward G. Nawy. Prentice Hall, 1989.
Lua MLA (8ú heag.)NAWY, Edward G. Prestressed Concrete A Fundamental Approach Edward G. Nawy. Prentice Hall, 1989.
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