APA Style
Das, B, M., Sobhan, K. (2014).
Principles of Geotechnical Engineering (8th Ed).
Stamford:
Cengage Learning.
MLA Style
Das, Braja, M.., Sobhan, Khaled.
"Principles of Geotechnical Engineering".
8th Ed
Stamford:
Cengage Learning,
2014.
Books.