Gaya APA

Silaban, P., Bowles, J, E. (1982). Analisa dan disain pondasi Foundation analysis and design (1982). : Jakarta : Erlangga,.

Gaya MLA

Silaban, Pantur., Bowles, Joseph, E. "Analisa dan disain pondasi Foundation analysis and design". 1982 : Jakarta : Erlangga,, 1982. Text.