Nash, H. (1995). Groundwater quality. Chapman & Hall.
Chicago Style (17th ed.) ZitazioaNash, H. Groundwater Quality. London: Chapman & Hall, 1995.
MLA (9th ed.) ZitazioaNash, H. Groundwater Quality. Chapman & Hall, 1995.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.