APA (7th ed.) Zitazioa

Das, B. M. (1985). Principles of geotechnical engineering. PWS -kent.

Chicago Style (17th ed.) Zitazioa

Das, Braja M. Principles of Geotechnical Engineering. Boston Mass: PWS -kent, 1985.

MLA (9th ed.) Zitazioa

Das, Braja M. Principles of Geotechnical Engineering. PWS -kent, 1985.