Freeman, T. (2003). Environmental geology laboratory. New York : John Wiley & Sons.
Cita Chicago (17th ed.)Freeman, Tom. Environmental Geology Laboratory. New York : John Wiley & Sons, 2003.
Cita MLA (9th ed.)Freeman, Tom. Environmental Geology Laboratory. New York : John Wiley & Sons, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.