241572 Marsh, W. M. (1987). Earthscape: A physical geography. New York : John Wiley & Sons.
Lua i Stíl Chicago (17ú heag.)241572 Marsh, William M. Earthscape: A Physical Geography. New York : John Wiley & Sons, 1987.
Lua MLA (9ú heag.)241572 Marsh, William M. Earthscape: A Physical Geography. New York : John Wiley & Sons, 1987.
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