Gaya APA
Johnson,, R.P. (1967).
Structural Concrete .
London:
McGraw-Hill.
Gaya Chicago
Johnson,, R.P.
Structural Concrete.
London:
McGraw-Hill,
1967.
Text.
Gaya MLA
Johnson,, R.P.
Structural Concrete.
London:
McGraw-Hill,
1967.
Text.
Gaya Turabian
Johnson,, R.P.
Structural Concrete.
London:
McGraw-Hill,
1967.
Print.