MACNAB, A. (2002). Earth retention systems handbook. McGraw-Hill.
Chicago Style aipamenaMACNAB, Alan. Earth Retention Systems Handbook. New York: McGraw-Hill, 2002.
MLA aipamenaMACNAB, Alan. Earth Retention Systems Handbook. McGraw-Hill, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.