Cita APA (7th ed.)
Das, B. M. (2010). Principles of geotechnical engineering (7th ed.). New Delhi.
Cita Chicago (17th ed.)
Das, Braja M. Principles of Geotechnical Engineering. 7th ed. Cengage Learning India Pvt Ltd,: New Delhi, 2010.
Cita MLA (9th ed.)
Das, Braja M. Principles of Geotechnical Engineering. 7th ed. New Delhi, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.