Lua APA (7ú heag.)
Das, B. M. (2010). Principles of geotechnical engineering (7th ed.). New Delhi.
Lua i Stíl Chicago (17ú heag.)
Das, Braja M. Principles of Geotechnical Engineering. 7th ed. Cengage Learning India Pvt Ltd,: New Delhi, 2010.
Lua MLA (9ú heag.)
Das, Braja M. Principles of Geotechnical Engineering. 7th ed. New Delhi, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.