APA (7th ed.) Zitazioa
Das, B. M. (2010). Principles of geotechnical engineering (7th ed.). New Delhi.
Chicago Style (17th ed.) Zitazioa
Das, Braja M. Principles of Geotechnical Engineering. 7th ed. Cengage Learning India Pvt Ltd,: New Delhi, 2010.
MLA (9th ed.) Zitazioa
Das, Braja M. Principles of Geotechnical Engineering. 7th ed. New Delhi, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.