Gaya APA
Bowles, J, E., Silaban, P. (1985).
Disain baja konstruksi: structural steel design .
Jakarta:
Penerbit Erlangga.
Gaya MLA
Bowles, Joseph, E.., Silaban, Pantur..
"Disain baja konstruksi: structural steel design".
Jakarta:
Penerbit Erlangga,
1985.
Printed Book.