Sparks, D. L. (2003). Environmental soil chemistry (2nd ed.). Academic Press.
Chicago Style aipamenaSparks, Donald L. Environmental Soil Chemistry. 2nd ed. Amsterdam: Academic Press, 2003.
MLA aipamenaSparks, Donald L. Environmental Soil Chemistry. 2nd ed. Academic Press, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.