APA (7th ed.) Zitazioa
Das, B. M. (2004). Principles of foundation engineering (5th ed.). Thomson.
Chicago Style (17th ed.) Zitazioa
Das, Braja M. Principles of Foundation Engineering. 5th ed. Singapore: Thomson, 2004.
MLA (9th ed.) Zitazioa
Das, Braja M. Principles of Foundation Engineering. 5th ed. Thomson, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.