Marsh, W. M. (2002). Environmental geography: science, land use, and earth: Systems. Wiley.
Chicago-viite (17. p.)Marsh, William M. Environmental Geography: Science, Land Use, and Earth: Systems. New York: Wiley, 2002.
MLA-viite (9. p.)Marsh, William M. Environmental Geography: Science, Land Use, and Earth: Systems. Wiley, 2002.
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