APA aipamena

MACNAB, A. (2002). Earth retention systems handbook. McGraw-Hill.

Chicago Style aipamena

MACNAB, Alan. Earth Retention Systems Handbook. New York: McGraw-Hill, 2002.

MLA aipamena

MACNAB, Alan. Earth Retention Systems Handbook. McGraw-Hill, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.