Gaya APA
Basic steel design. (1980).
New Jersey:
prentice-hall.
Gaya Chicago
Basic steel design.
1.
New Jersey:
prentice-hall,
1980.
Buku.
Gaya MLA
Basic steel design.
1.
New Jersey:
prentice-hall,
1980.
Buku.
Gaya Turabian
Basic steel design.
New Jersey:
prentice-hall,
1980.
Buku.