Gaya APA
Davison, B., Owens, G, W. (2012).
Steel designers` manual : the steel construction institute (7th. ed.).
Iowa:
Wiley-Blackwell.
Gaya MLA
Davison, Buick., Owens, Graham, W..
"Steel designers` manual : the steel construction institute".
7th. ed.
Iowa:
Wiley-Blackwell,
2012.
Text.