Gaya APA
Bowles, J, E., Silaban, P. (1986).
[Foundation Analysis and Design. Bah. Indonesia] Analisa dan Disain Pondasi Jilid I (Ed.3, Cet.2).
Jakarta:
Erlangga.
Gaya MLA
Bowles, Joseph, E.., Silaban, Pantur.
"[Foundation Analysis and Design. Bah. Indonesia] Analisa dan Disain Pondasi Jilid I".
Ed.3, Cet.2
Jakarta:
Erlangga,
1986.
Text.