Gaya APA
Das, Braja M. (2018).
Principles of geotechnical engineering .
Boston:
Cengage Learning.
Gaya Chicago
Das, Braja M.
Principles of geotechnical engineering.
Boston:
Cengage Learning,
2018.
Text.
Gaya MLA
Das, Braja M.
Principles of geotechnical engineering.
Boston:
Cengage Learning,
2018.
Text.
Gaya Turabian
Das, Braja M.
Principles of geotechnical engineering.
Boston:
Cengage Learning,
2018.
Print.