APA aipamena

Das, B. M. (1997). Principles of geotechnical engineering (4.). International Thomson Publishing company.

Chicago Style aipamena

Das, Braja M. Principles of Geotechnical Engineering. 4. Boston: International Thomson Publishing company, 1997.

MLA aipamena

Das, Braja M. Principles of Geotechnical Engineering. 4. International Thomson Publishing company, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.