Dury, G. H. (1970). Rivers and river terraces. Praeger.
Chicago Style (17th ed.) ZitazioaDury, George H. Rivers and River Terraces. New York: Praeger, 1970.
MLA (9th ed.) ZitazioaDury, George H. Rivers and River Terraces. Praeger, 1970.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.