Gaya APA
Das, Braja M.. (2007).
Principles of geotechnical engineering .
:
Thomson.
Gaya Chicago
Das, Braja M..
Principles of geotechnical engineering.
:
Thomson,
2007.
Text.
Gaya MLA
Das, Braja M..
Principles of geotechnical engineering.
:
Thomson,
2007.
Text.
Gaya Turabian
Das, Braja M..
Principles of geotechnical engineering.
:
Thomson,
2007.
Print.