Gaya APA
Principles of Geotechnical Engineering. (2014).
Canada:
Cengage Learning.
Gaya Chicago
Principles of Geotechnical Engineering.
Ed.8, Cet.1.
Canada:
Cengage Learning,
2014.
.
Gaya MLA
Principles of Geotechnical Engineering.
Ed.8, Cet.1.
Canada:
Cengage Learning,
2014.
.
Gaya Turabian
Principles of Geotechnical Engineering.
Canada:
Cengage Learning,
2014.
.