Das, B. M. (2019). Principles of foundation engineering. Cengage Learning.
Trích dẫn kiểu ChicagoDas, Braja M. Principles of Foundation Engineering. Cengage Learning, 2019.
MLA引文Das, Braja M. Principles of Foundation Engineering. Cengage Learning, 2019.
警告：這些引文格式不一定是100％准確.