Salvadori, M., & Heller, R. (1975). Structure in architecture (Second edition.). Prentice-Hall.
Cita Chicago (17th ed.)Salvadori, Mario, i Robert Heller. Structure in Architecture. Second edition. Englewood Cliffs ; New Jersey: Prentice-Hall, 1975.
Cita MLA (8th ed.)Salvadori, Mario, i Robert Heller. Structure in Architecture. Second edition. Prentice-Hall, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.