Gaya APA
Civil engineering handbook. (1959).
New York:
McGraw Hill.
Gaya Chicago
Civil engineering handbook.
4th.
New York:
McGraw Hill,
1959.
CD Skripsi.
Gaya MLA
Civil engineering handbook.
4th.
New York:
McGraw Hill,
1959.
CD Skripsi.
Gaya Turabian
Civil engineering handbook.
New York:
McGraw Hill,
1959.
CD Skripsi.