CHAJES, A. (1990). Strucutral analysis.-- Ed.2. Prentice-Hall International.
Lua i Stíl Chicago (17ú heag.)CHAJES, Alexander. Strucutral Analysis.-- Ed.2. Englewood Cliffs: Prentice-Hall International, 1990.
Lua MLA (9ú heag.)CHAJES, Alexander. Strucutral Analysis.-- Ed.2. Prentice-Hall International, 1990.
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