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Cita Chicago (17th ed.)ebrary, Inc, Donald M. Waller, i Thomas P. Rooney. The Vanishing Present: Wisconsin's Changing Lands, Waters, and Wildlife. Chicago: University of Chicago Press, 2008.
Cita MLA (9th ed.)ebrary, Inc, et al. The Vanishing Present: Wisconsin's Changing Lands, Waters, and Wildlife. University of Chicago Press, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.