Levy, M., & Salvadori, M. G. (1992). Why buildings fall down: How structures fail. W.W. Norton.
Lua i Stíl Chicago (17ú heag.)Levy, Matthys, agus Mario George Salvadori. Why Buildings Fall Down: How Structures Fail. New York: W.W. Norton, 1992.
Lua MLA (9ú heag.)Levy, Matthys, agus Mario George Salvadori. Why Buildings Fall Down: How Structures Fail. W.W. Norton, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.