APA (7th ed.) Zitazioa
Das, B. M. (2007). Principles of foundation engineering. Thomson/Brooks/Cole.
Chicago Style (17th ed.) Zitazioa
Das, Braja M. Principles of Foundation Engineering. New Delhi: Thomson/Brooks/Cole, 2007.
MLA (9th ed.) Zitazioa
Das, Braja M. Principles of Foundation Engineering. Thomson/Brooks/Cole, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.