Cita APA (7a ed.)

Braja M. Das; Nagaratnam Sivakugan. (2018). Principles of Foundation Engineering, 9th Edition (ninth edition.). Cengage Learning.

Cita Chicago Style (17a ed.)

Braja M. Das; Nagaratnam Sivakugan. Principles of Foundation Engineering, 9th Edition. ninth edition. United States of America: Cengage Learning, 2018.

Cita MLA (8a ed.)

Braja M. Das; Nagaratnam Sivakugan. Principles of Foundation Engineering, 9th Edition. ninth edition. Cengage Learning, 2018.