CHAJES, A. (1990). Strucutral analysis.-- Ed.2. Prentice-Hall International.
Cita Chicago (17th ed.)CHAJES, Alexander. Strucutral Analysis.-- Ed.2. Englewood Cliffs: Prentice-Hall International, 1990.
Cita MLA (9th ed.)CHAJES, Alexander. Strucutral Analysis.-- Ed.2. Prentice-Hall International, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.