Atkins, H. N. (1997). Highway Materials, Soils, And Concrete Harold N. Atkinson. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Atkins, Harold N. Highway Materials, Soils, And Concrete Harold N. Atkinson. Prentice-Hall, 1997.
Lua MLA (8ú heag.)Atkins, Harold N. Highway Materials, Soils, And Concrete Harold N. Atkinson. Prentice-Hall, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.