Gaya APA
Structural Steel Design. (1971).
Amerika:
International Texbook Company.
Gaya Chicago
Structural Steel Design.
cet.6.
Amerika:
International Texbook Company,
1971.
.
Gaya MLA
Structural Steel Design.
cet.6.
Amerika:
International Texbook Company,
1971.
.
Gaya Turabian
Structural Steel Design.
Amerika:
International Texbook Company,
1971.
.