Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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