Freeman, T. (2003). Environmental geology laboratory. New York : John Wiley & Sons.
Chicago Style aipamenaFreeman, Tom. Environmental Geology Laboratory. New York : John Wiley & Sons, 2003.
MLA aipamenaFreeman, Tom. Environmental Geology Laboratory. New York : John Wiley & Sons, 2003.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.