Gaya APA
Manual of Steel Construction. (1980).
USA:
American Institute of Steel Construction, Inc..
Gaya Chicago
Manual of Steel Construction.
8.
USA:
American Institute of Steel Construction, Inc.,
1980.
Text.
Gaya MLA
Manual of Steel Construction.
8.
USA:
American Institute of Steel Construction, Inc.,
1980.
Text.
Gaya Turabian
Manual of Steel Construction.
USA:
American Institute of Steel Construction, Inc.,
1980.
Print.