Hibbeler, R. C. (1990). Structural Analysis Russell C. Hibbeler. Macmillan.
Lua i Stíl Chicago (17ú heag.)Hibbeler, Russell C. Structural Analysis Russell C. Hibbeler. Macmillan, 1990.
Lua MLA (8ú heag.)Hibbeler, Russell C. Structural Analysis Russell C. Hibbeler. Macmillan, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.