Derucher, K. N. (1981). Materials For Civil And Highway Engineers / Kenneth N. Derucher. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Derucher, Kenneth N. Materials For Civil And Highway Engineers / Kenneth N. Derucher. Prentice-Hall, 1981.
Lua MLA (8ú heag.)Derucher, Kenneth N. Materials For Civil And Highway Engineers / Kenneth N. Derucher. Prentice-Hall, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.