Tohutoro APA (7th ed.)

Das, B. M., & Sivakugan, N. (2017). Fundamentals of geotechnical engineering (Fifth edition.). Cengage Learning.

Tohutoru Kātū Chicago (17th ed.)

Das, Braja M., me Nagaratnam Sivakugan. Fundamentals of Geotechnical Engineering. Fifth edition. Massachusetts: Cengage Learning, 2017.

Tohutoro MLA (9th ed.)

Das, Braja M., me Nagaratnam Sivakugan. Fundamentals of Geotechnical Engineering. Fifth edition. Cengage Learning, 2017.