(1994). Soil processes and water quality. Baca Raton, U.S.A: Lewis Publishers.
Chicago Style aipamenaSoil Processes and Water Quality. Baca Raton, U.S.A: Lewis Publishers, 1994.
MLA aipamenaSoil Processes and Water Quality. Baca Raton, U.S.A: Lewis Publishers, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.