Poulos, H. (1980). Pile foundations analysis and design. Wiley.
Chicago Style aipamenaPoulos, H.G. Pile Foundations Analysis and Design. New york: Wiley, 1980.
MLA aipamenaPoulos, H.G. Pile Foundations Analysis and Design. Wiley, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.