Lua APA (7ú heag.)
Das, B. M. (2007). Principles of foundation engineering (6th ed.). New Delhi ; Thomson/Brooks/Cole.
Lua i Stíl Chicago (17ú heag.)
Das, Braja M. Principles of Foundation Engineering. 6th ed. Pacific Grove, CA: New Delhi ; Thomson/Brooks/Cole, 2007.
Lua MLA (9ú heag.)
Das, Braja M. Principles of Foundation Engineering. 6th ed. New Delhi ; Thomson/Brooks/Cole, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.