Axhag, F. (1998). Plastic design of slender steel bridge girders.
Lua i Stíl Chicago (17ú heag.)Axhag, Frank. Plastic Design of Slender Steel Bridge Girders. 1998.
Lua MLA (8ú heag.)Axhag, Frank. Plastic Design of Slender Steel Bridge Girders. 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.