Gaya APA
Chellis, Robert D.. (1961).
Pile Foundations .
:
McGraw-Hill Book Co..
Gaya Chicago
Chellis, Robert D..
Pile Foundations.
:
McGraw-Hill Book Co.,
1961.
Text.
Gaya MLA
Chellis, Robert D..
Pile Foundations.
:
McGraw-Hill Book Co.,
1961.
Text.
Gaya Turabian
Chellis, Robert D..
Pile Foundations.
:
McGraw-Hill Book Co.,
1961.
Print.