APA (7th ed.) Zitazioa
Fletcher, C. J. N. (2016). Geology for Ground Engineering Projects: Chris J. N. Fletcher. CRC Press.
Chicago Style (17th ed.) Zitazioa
Fletcher, Chris J. N. Geology for Ground Engineering Projects: Chris J. N. Fletcher. New York: CRC Press, 2016.
MLA (9th ed.) Zitazioa
Fletcher, Chris J. N. Geology for Ground Engineering Projects: Chris J. N. Fletcher. CRC Press, 2016.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.