Gaya APA
Davis, J.. (1975).
Ground Engineering .
:
The Institution of Civil Engineers.
Gaya Chicago
Davis, J..
Ground Engineering.
:
The Institution of Civil Engineers,
1975.
Text.
Gaya MLA
Davis, J..
Ground Engineering.
:
The Institution of Civil Engineers,
1975.
Text.
Gaya Turabian
Davis, J..
Ground Engineering.
:
The Institution of Civil Engineers,
1975.
Print.